梵蒂冈有关坠胎的教义是清楚的：这是个罪过。

The Vatican's teaching on abortion is clear: it is a sin.

《柯林斯英汉双解大词典》

该总统的立场必然会再次引发关于坠胎的恼人的辩论。

The president's stand is bound to reawaken the painful debate about abortion.

《柯林斯英汉双解大词典》

在我怀第二胎的时候就没有余地去注意了。

With my second pregnancy I didn’t have the luxury to notice.

youdao

These cells around the outside form the interface, the placenta, where the maternal blood circulation meets the embryonic circulation and nutrients are passed back and forth that way in a very highly regulated and important way.

外层的细胞形成接触面,即胎盘,是母血与胎血,进行血液交换,及营养物质交换的场所,整个过程高度有序并且非常重要

耶鲁公开课 - 生物医学工程探索课程节选