Hexadiyne
[化] 己二炔
🗣️ 情景例句
After the marathon, most of the competitors looked all in.
跑完马拉松，大多数参加比赛的人显得疲劳不堪。
The crowd gasped with astonishment.
大家惊讶的屏住呼吸。
I'll have to check to see if we can handle that.
我得查查看我们是否付得了这么多。、