Dihydrazone
[机] 二腓
🗣️ 情景例句
When you feel your life is threatened, just dial 999 to get help.
当你的生命受到威胁的时候，拨打 999 求救。
You will leap for joy when you hear the answer.
如果你听到了答案，你会高兴的跳起来的。
I've decided to bring seven.
我决定带七位。