Hexadiyne
[化] 己二炔
🗣️ 情景例句
What's it for?
是做什么用的？
To wave your arms
振臂，挥手
Oh dear! You mean I'm too fat? That is a problem! said Mrs Brown.
“天哪！你的意思是说我太胖了吧？这是个问题！”布朗夫人说