Enteroderm
消化道内胚层
🗣️ 情景例句
We all need one of those.
我们都需要一个这样的领结。
Mike found it difficult to adjust at first, but he's used to studying at Harvard now.
刚开始迈克发现很难适应在哈佛的学习，但现在他已经习惯了。
the waters flow more quietly, and in the end, without any visible break,
河水流得平缓起来，最后连绵不断地