Perchlorethane
[化] 全氯乙烷
🗣️ 情景例句
I want to buy a sleeper ticket to New York.
我想买张到纽约的卧铺票。
Can I use the lift?
我能用电梯吗？
Don't worry about that. Right now you need to stay still until help comes.
别为这事担心。现在，在有人来之前，你必须要呆着不动。