The fetus in her belly is a boy.

她肚子里的胎儿是个男孩。

The fetus died before he was born.

这个胎儿还未出生就夭折了。

The doctor advised her to abort the malformed fetus.

医生建议她打掉这个畸形胎儿。

Pregnant women who are heavy drinkers risk damaging the unborn fetus.

孕妇酗酒可能会危及腹中胎儿

Pregnant women who are heavy drinkers risk damaging the unborn fetus.

酗酒的孕妇冒有伤害胎儿的危险。

At the end of the first trimester, the fetus is about three inches long.

在怀孕的第三个月末，胎儿差不多有三英寸长了。

Microscopic examination of a cell's chromosomes can reveal the sex of the fetus.

用显微镜检查细胞染色体可以查出胎儿的性别。

There have been no studies of the effects of a low carbohydrate diet on pregnancy, so its effect on the fetus, if any, is unknown.

目前还没有关于怀孕时低碳水化合物饮食影响的研究，因此如果它对胎儿有什么影响也是不知道的。

There be certain chemicals in fertilizers used to crop-dust cotton that affect the unborn fetus.

作物粉尘中使用的化肥中有某些化学物质会影响胎儿。