Chloroacetylene
[建] 氯乙炔
??? 情景例句
Sit down, Robbie. Let's get to work.
坐下來 ，Robbie， 讓我們開始做功課吧。
I have no other choice.
我別無選擇。
Do you realize that all of these shirts are half off?
你知道這些襯衫都賣半價了嗎？