Diyne
[化] 二炔
🗣️ 情景例句
He ofter overdrafts his account.
他的账户经常透支。
You're carring that joke too far.
你那个玩笑开得太过分了。
It was stolen twenty years ago when Dan was a boy of fifteen!
这是20年前丹还是一个15岁的孩子时被人偷走的！