Dach
[医][=diamino-cyclohexane]二氨基环己烷
🗣️ 情景例句
I hope you don't mind
希望你不介意
They that do nothing learn to do ill.
游手好闲，容易学坏。
he had great difficulty in controlling the car because a tyre burst during the first run.
但他很难把汽车控制住，因为在开始的行程中爆了一只轮胎。