Diazane
二氮烷, 肼
🗣️ 情景例句
How ofter have met with our competitors?
你多久遭遇我们的竞争对手一次？
When a dog is drowning everyone offers him drink.
落井下石。
No matter how hard I tried, it was impossible to fill this beautiful pen with ink and to this day it has never written a single world!
然而不管我如何摆弄，那枝漂亮的钢笔就是吸不进墨水来。直到今天，那枝笔连一个字也没写过！