Phosgenation
光气化(作用)
🗣️ 情景例句
and there's one person I haven't photographed in a long time.
而有一个人我已经很久没为她拍照了。
For once, I haven't taken the wrong train!
我从来不曾误搭过一次列车。
I'm going to give her a book.
我想送她一本书。