Apud
胺前体摄取与脱羧
🗣️ 情景例句
I have to go out and hand out fliers.
我要出去派传单。
The Senator acceded to his defeat before the end of the election.
那位参议员在选举结束以前就承认落选了。
Suppose it rains,what shall we do?
万一下雨，我们该怎么办？