Subproblem
[计] 子问题
🗣️ 情景例句
Absolutely.
绝对是真的。
No, I'm sorry, sir. We don't accept checks.
先生，对不起，我们不接受支票。
Oh, cheer up!perhaps we didn't to do badly.
啊，别灰心！或许我们考得还不太糟。