Acetylenic
[机] 炔的
🗣️ 情景例句
Hi.
你好！
It's none of my business,but I think you ought to work harder.
它是不关我的事，但是我认为你应该努力工作。
The man went to great lengths to prove that the diamonds were real.
那人竭力想证明那钻石是真货。