Pentanoic acid
[化] 戊酸
🧩 词语组成解析
🗣️ 情景例句
It's for a book.
是为一本书拍的。
The mills of God grind slowly but sure.
天网恢恢，疏而不漏。
There were six million visitors in all,
参观的人数总共是600万。