Dithioacid
二硫代羧酸, 荒酸
🗣️ 情景例句
Relax, Harry.
不要紧张 ，Harry。
Mr. Smith is a politician.He's running for election as governor.
史密斯先生是竞选州长的一名政治家。
The only way to do this was to operate.
搞清的唯一办法就是手术。