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fetus develops

fetus develops

fetus develops

fetus develops

1

Researchers learned that the lever of testosterone in a fetus goes up and down as the fetus develops .

研究人员已经查明，随着胎儿的生长，其睾丸激素的多少在不断变化。

2

Hostess It starts at conception . The genes trigger enzymes which produce testosterone and estrogen , and control how the fetus develops.

从受孕开始，基因就触发酶产生睾丸激素和雌激素，并且控制胎儿的发育。

3

Early in gestation , a fetus develops smooth , raised pads on the fingers , palms , and feet .

怀孕初期，胎儿长出指头，手掌和脚的平滑部分和衬垫。

4

Early in gestation , a fetus develops smooth , raisedpadsonthe fingers, palms, and feet .

在孕育的早期，胎儿生长平稳，手指，手掌，脚的肉垫开始生长。

5

The fetus develops lungs relatively late in the gestation period .

在妊娠期胎儿的肺生长得相对慢些。

6

As a male fetus develops , the gonads descend .

当男性胎儿逐渐发育，睪丸便会下降。

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