Dach
[医][=diamino-cyclohexane]二氨基环己烷
🗣️ 情景例句
Is it all right if I use a letter of credit?
如果我使用信用证，没关系吧？
We have mainly adopted some usual international practices.
我们主要采取了一些国际上的惯例做法。
There are plenty of high-rise windowsills to fall from! One cat, Sabrina, fell 32 storeys, yet only suffered from a broken tooth.
有一只叫萨伯瑞的猫从32层楼上掉下来，但只摔断一颗牙。