Ectoderm
n. 外胚层, 外层\\n[医] 外胚层
🗣️ 情景例句
She is everything I've ever wanted.
她是我想要的一切。
A crafty knave needs no broker.
狡猾的流氓，不需居间人。
He was still smiling when the door opened and his wife came in.
他正笑着的时候门开了，他的妻子走了进来。