Conversion option
[经] 兑换选择权
🧩 词语组成解析
🗣️ 情景例句
She was playing with the idea of studying abroad.
她有出国留学的念头，但并非很认真。
I enclosed some photographs in my letter.
我在信封里装了一些相片。
But I think it's much nicer in a paper bag,in the open air!
不过我想把它放在纸袋里，在露天吃更好！