Dach
[医][=diamino-cyclohexane]二氨基环己烷
🗣️ 情景例句
I'll pick you up.
我去接你。
If he doesn't help him, I will.
如果他不，我将帮助他。
It provides relaxation for leisure hours, as just looking at one's treasures is always a joy.
它可以使人在闲暇中得到休息，因为欣赏自己收藏的珍品总会充满了乐趣。