Dach
[医][=diamino-cyclohexane]二氨基环己烷
🗣️ 情景例句
Sorry, I don't quite understand why...
对不起，我不太理解为什么…
Does the back door have a lock on it?
后门上有锁吗？
The only regular visitors to the monastery in winter are parties of skiers who go there at Christmas and Easter.
冬天常来修道院参观的只有一批批滑雪者。他们在圣诞节或复活节到那儿去。