Introcession
[医] 凹陷
🗣️ 情景例句
What's your problem, Mike?
你现在问题在哪 ，Mike？
I never would have thought of it if you hadn't mentioned it.
如果你没提及，我将不会想到它。
For them this is a major operation which involves considerable planning.
看戏在他们是件大事，需要精心计划。