Caduca
[医] 蜕膜
🗣️ 情景例句
It's mostly young people who take part.
参加活动的绝大多数是年青人。
The theory may hold water.
这理论可能行得通。
On the other hand, I felt sad that I wasn't able to tell my grandparents that we were safe.
另一方面，我为不能告诉我的祖父母我们十分安全而感到难过。