Pentoic acid
[化] 戊酸
🧩 词语组成解析
🗣️ 情景例句
May I ask how Mr. Mrs- is?
-先生（小姐）好吗？
Can I take my vacation, sir? I would like to see my mother in Miami.
头，我可以休假吗？我要去探望在迈阿密的母亲。
This price is quite a bit higher than it was last time.
这次的价格比上次要贵了一些。