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。

《柯林斯英汉双解大词典》

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。

《柯林斯英汉双解大词典》

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。

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For example, genes direct formation of the fetus's brain at set times in a woman's pregnancy.

VOA: special.2010.03.23

At least in the case of the fetus,it's not self-conscious.

至少在作为胎儿，并没有自我意识。

耶鲁公开课 - 死亡课程节选

If we have a debate about abortion in this class, people--some people might say, "Look. The fetus is a sentient being and as such it has a right to survive and shouldn't be killed by its mother."

如果我们在课常上以堕胎展开辩论，有些人可能会说，“胎儿是有知觉的生命体,所以它有生存的权利,它的母亲不应该扼杀它”

耶鲁公开课 - 心理学导论课程节选

No testosterone on these occasions means that the fetus will be born a girl.

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But she soon learned the fetus had no heartbeat, and she had to undergo a drug-induced abortion.

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Wade, abortions are generally permitted until the fetus is considered viable, or able to live outside the womb.

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