Ectoderm
n. 外胚层, 外层\\n[医] 外胚层
🗣️ 情景例句
I hope I can repay you for it.
我希望能报答你。
Would you care to take a seat while I make out a receipt?
请坐一会儿好吗？我给您开个收据。
Then he spoke slowly, but I could not understand him.
于是他说得慢了，可我还是听不懂。