Concavoconvex
[医] 凹凸的
🗣️ 情景例句
I can communicate with foreigners easily.
我能轻松地和外国人沟通。
I want to reserve a room.
我想预订一个房间。
I'm not sure. I think he may have to help his Dad in the garden.
我不清楚。我想可能他得帮助他爸爸在花园里干活。