Dach
[医][=diamino-cyclohexane]二氨基环己烷
🗣️ 情景例句
I don't feel alone anymore.
我再也不觉得孤独了。
Knowledge advances by steps not by leaps.
知识的获得是循序渐进而不是突飞猛进的。
But he has not promised to give you any of his blood.
但是他并没有答应给你他身上的任何一滴血。