Pentoic acid
[化] 戊酸
🧩 词语组成解析
🗣️ 情景例句
We need to bring a flashlight.
我们需要带一个手电筒。
A cracked bell can never sound well (is never sound).
破钟无好音。
You might have left it in the shop.
可能你把它落在店里了。