Acetylenedihalide
[建] 乙炔化二卤, 恒二卤代乙烯, 二卤乙烯
🗣️ 情景例句
He invests his money in the stock market, dreaming of huge profits.
他把钱投资在股市中， 梦想从中获暴利。
We kept on discussing the problem for four hours.
我们持续讨论那个问题达四小时。
There is nothing I can do.
我无能为力。