Acetylentie polyhalide
[机] 炔属多卤化物
🧩 词语组成解析
多卤化物
🗣️ 情景例句
We're happy you got the promotion.
很高兴你得到了提拔。
His bad English is a bar to his getting a job.
他的英语很差，这是他找工作的一个障碍。
Then I added with a smile,
我微笑地接着说，