Convexoconcave
[医] 凸凹的
🗣️ 情景例句
The best man always keeps the rings.
男傧相总是保管戒指的。
The watch is out of order.
这手表出毛病了。
Could I drop in at your house after the concert, or would that be too late?
我可不可以在音乐会开完后去你家拜访？那会不会太晚了？