Concavoconcave
[医] 对凹的, 双凹的
🗣️ 情景例句
Who is it?
是谁?
Poverty is not a disgrace,but theft is a disgrace.
贫穷不可耻，偷窃乃足羞。
Do you think you can follow our specifications for packing?
就照我们的指定方式装箱，没问题吧。