M. et sig.
[医] 混合, 写明用法
🧩 词语组成解析
[化] 乙基
[医] 标记, 用法签
🗣️ 情景例句
We had a cat when I was eight years old.
我八岁时养过一只猫。
Experience must be bought.
若要得经验，必须化代价。
Check the prices before you decide whether to buy one.
先把价格核对一下，再决定该不该买。