Ectoderm
n. 外胚层, 外层\\n[医] 外胚层
🗣️ 情景例句
Does Richard Stewart live here?
Richard Stewart住这吗？
Rachel promised to listen for the telephone.
雷切尔答应要守着接听电话。
We enjoyed ourselves very much!
谢谢你邀请我们作客。我们过得非常愉快！