Picolinic acid
[建] 啶甲酸-[2]
🧩 词语组成解析
🗣️ 情景例句
We needed the money.
我们当时需要钱。
I was in the hospital for several weeks.
我在医院里住了几个星期了。
It's none of your business!
这不关你的事儿！