Dach
[医][=diamino-cyclohexane]二氨基环己烷
🗣️ 情景例句
I'm presently making five thousand a month.
我目前的薪水是5000元。
Business is the salt of life.
事业事人生之盐。
However, rescue operations are proving difficult.
然而，事实证明营救工作非常困难。