Ectoderm
n. 外胚层, 外层\\n[医] 外胚层
🗣️ 情景例句
Remember catching your first fish?
还记得你第一次钓到鱼的情形吗？
The plate is dirty, Would you bring me a clean one, please?
这碟子是脏的，请你拿个干净的给我。
It would never again be possible for them to lead normal lives.
他们再也无法过正常的生活。