Acetylenic carbon
[机] 炔键碳
🧩 词语组成解析
[机] 炔的
🗣️ 情景例句
He's writing to invite me
他写信邀请我
Discontent is the first step in progress.
不知足是前进中的第一步。
From the top of it, you could see up to a distance of 130 kilometres on a clear day.
在晴朗的日子里，从楼的顶层你可以看到130公里远的地方。