Concavoconcave
[医] 对凹的, 双凹的
🗣️ 情景例句
Sounds like no.
声音像 no 。
We are always willing to cooperate with you and if necessary make some concessions.
我们总是愿意合作的，如果需要还可以做些让步。
We need three times as much as we originally ordered.
原来的三倍。