Trimellitic acid
[化] 1,2,4-苯三酸
🧩 词语组成解析
🗣️ 情景例句
I have the key, but it doesn't work.
我有钥匙， 但是开不开箱子。
Excuse me for the mistake.
对不起为我所犯的错误。
Before he retired, Frank was the head of a very large business company, but as a boy he used to work in a small shop.
在退休前，弗兰克是一家非常大的商业公司的经理，但他小时候却在一家小铺里做工。