Hn1
[化] 2,2'-二氯三乙胺
🗣️ 情景例句
You are twenty-one, a grown-up young lady old enough to make up your own mind.
你已经21岁了，已经到了可以自己做主的年龄了。
He that would eat the kernel must crack the nut.
要把果仁吃，就得碎果壳。
If people don't stop polluting the seas and rivers, there will be no fish left.
如果人们不停止污染海洋和河流的行为，那么，就没有鱼会留下来了。