Methaldehyde
四聚乙醛
🗣️ 情景例句
What are you trying to say, Harry?
你到底想说什么， Harry？
I was born in China and brought up in the U.S.A.
我出生在中国，在美国长大。
I thought I put it in my coat, but it isn't here!
我想我把它放在大衣里，可现在不见了！