Concavoconvex
[医] 凹凸的
🗣️ 情景例句
running for the school board.
竞选联合校董会董事。
The man who makes no mistakes does not usually make anything.
不犯错误的人往往也就是无所作为的人。
It was only possible for the Ombudsman to find this out by sending one of his representatives to check the facts.
司法特派员只有派他的代表去核对事实才能了解真相。