In this case, Lanze began to adjust the state of the development box. The water level in the box soon dropped slightly, exposing a small section of air. The water surface rippled fiercely, and there were splashes of water everywhere on the top of the box.

If the water surface was calm, it should only have dropped five centimeters.

Mo Mo noticed it immediately. While looking up at the white water splash on the top, he waved his hand more vigorously.

If the development box he lived in was a sea, then this sea would now be full of rough seas and turbulent undercurrents.

Lan Ze thought about it for a moment, and another five centimeters came.

If the water calmed down, it would be enough for his little son to put his face out of the water.

Since children like to play, let them play. Anyway, with the protection of a breathing mask, it is impossible to choke on the water.

The process of Mo Mo switching to lung breathing was faster than Lan Ze imagined.

In fact, it was much faster than the average data he saw.

Xiao Momo's ability to adapt to the air is better than most children.

As a registered nursery teacher, Lan Ze has access to public data on the national nursery system, including the nursery development data of the family's four eldest sons.

Mo Mo's adaptation speed far exceeded the data records left by her four brothers.

Lanze based his psychological expectations on the average level of his four eldest sons.

Not only did Mo Mo skip the adaptive training of the respirator mask, but the speed at which lung breathing was established also successfully exceeded his expectations.

The next day, on the morning of the 21st, Mo Mo's breathing mask was already floating.

The little guy had woken up, lying on his back in the water, kicking the water with his legs. His head hit the inner wall of the development box.

Lan Ze felt a little distressed when he saw it. For a child this month old, the fontanel had not yet closed. Although the inner layer of the box wall was flexible, he couldn't help but worry about damaging his little son's brain.

After taking a closer look, he discovered that Mo Mo was observing the splash of water above his head.

I was mesmerized by what I saw.

Can a child this month have this level of concentration?

Maybe? Probably? Maybe?

Noticing the person coming, Xiao Momo turned over. Through the breathing mask, he let out a short and dull "Ah~"

After hearing this sound, Xiao Momo was stunned for a moment, and then his face completely sank into the water, and he looked out of the development box through the amniotic fluid.

Lan Ze couldn't help but smile. Xiao Momo was still accustomed to being in the water.

This morning, Lan Ze released another ten centimeters of amniotic fluid for Mo Mo.

There is a clear space above the development box. From time to time, Mo Mo can put half of his head out of the water and look around.

The refractive index of air is much smaller than that of water, so the sight he saw was probably quite novel to him.

He took one look and sank down, took a look from under the water, and then stretched out from the water to continue looking. He had a great time.

Sometimes he would lift the breathing mask out of the water. Therefore, through the wall of the development box, he could occasionally hear short sounds of "ah-ah-" coming from inside.

Air and water also have different absorption rates for vibrations. When they surface, the shouting will be louder.

The silicone bulges in the respirator actually prevent babies from making loud, long sounds.

However, getting rid of this mask is also very quick.

Especially, this child is the youngest of their family.

Mo Mo is a child who knows how to enjoy himself, adapts quickly, and is full of curiosity. His personality is also very stable.

Therefore, during the early education class that day, Lan Ze restored Mo Mo to normal.

It may be a new experience to watch the content of early childhood education classes with the vision in the air.

In the evening of the same day, Lanze lowered the water level by another ten centimeters to Momo. The thirty-centimetre-high air layer was already one-third of the capacity of the development box.

The child was lying comfortably in the water, looking up at the sky, and patting the water with his hands and feet. The surroundings of the development box were transparent, but the top of the box was not transparent. In fact, there was nothing to see.

So he looked at it, the movements of his hands and feet slowed down, and he fell asleep.

On the morning of the 22nd of the third day, Zhang He went to the children's school to pick up his four eldest sons. On this day, there were no games scheduled for the school's ice hockey competition. It was considered a short truce. Otherwise, the boys would not have wanted to

Come back with mom.

They came back and went upstairs to see their father guarding the development box. When they saw little Momo, the four brothers immediately became excited.

Less than half of the amniotic fluid in the development box is empty. Momo's head is above the water, and his legs and feet are stepping on the water underneath. If he straightens his body, he can actually stand in it.

"Momo! Momo!" his brothers called him loudly.

This time Mo Mo had a voice response: "Uh-uh-"

"Dad! Dad! Can Momo come out now? How can my brother come out?" Xiaomai asked Lanze excitedly. The other three sons also immediately gathered around.

"Well, it's almost time."

"Can Mo Mo come out today?" Douzi also asked.

"Well... don't worry."

"I want to play with my brother!" Diandian's eyes were shining.

Lan Ze had actually been hesitating all morning, whether he should just take Mo Mo out in advance. Whether the child needed a breathing mask or not was the same thing. He was already breathing air.

The test of the development box showed that the oxygen consumption through the breathing mask was much greater than the oxygen delivery through the umbilical cord. Therefore, the child has been struggling more vigorously in the past two days. If you want Mo Mo to leave the development box early, you need to start the umbilical cord shedding process.

…

After the umbilical cord falls off, the child has to eat with his mouth. This is not a big problem, since he already has teeth.

He hesitated and had another consideration: Mo Mo hadn't stood up yet.

If you leave the buoyancy of the water rashly, your little arms and legs may feel uncomfortable.

Moreover, the air outside the development box is much colder than the warm amniotic fluid. The room temperature at home is only 18 degrees.

Leaving the development box, lung breathing is not the only challenge. Challenges are everywhere, and lung breathing is just the most intense one.

"Dad, can I carry Momo out with my own hands?" Xiaomi asked solemnly.

Lan Ze thought for a while and smiled: "Okay."

Xiaomi caressed her chest and took a deep breath: "Thank you, Dad."

He asked again: "So, how long do we have to wait?"

"That depends on the little brother's performance." Lanze replied, "I guess it may be the day after tomorrow or the day after tomorrow."

"Okay. I'll wait for him at home." Xiaomi looked at Mo Mo tenderly.

"I'm also waiting for him at home." Douzi joined the queue waiting for Momo without hesitation.

"I want to wait for Momo! I want to wait for my brother! I also want to hold little Momo!" Xiaomai hurriedly declared.

Diandian smiled: "Everyone can touch the end of Xiao Mo soon, so we don't have to worry."

Their mother followed them upstairs and appeared at the door: "Aren't you going to watch the game?"

"I think my younger brother is more important." Xiaomi replied grandly.
Chapter completed!