Pentapropyl
五丙基
🗣️ 情景例句
Shells she sells on the seashore are seashells I am sure.
我敢肯定她在海边卖的贝壳是海贝。
Old wood is best to burn,old book to read.
老柴好烧，老书宜读。
Funny, said my brother.
“真有趣，”我弟弟说。