Dehydroabietic acid
[化] 脱氢枞酸
🧩 词语组成解析
🗣️ 情景例句
It's time we hired a secretary to answer the phones.
我们早就该请一个秘书接听电话了。
You are fatter than I am.
你比我胖。
Do me a favor?
帮个忙，好吗？