Decopper
除铜, 脱铜
🗣️ 情景例句
OK, hold to the right.
好， 在右边停住。
I asked him to lend me a book , but he wouldn't.
我请他把书借给我，但是他不肯。
But so far, the public has expressed its gratitude to the students in letters to the Press.
但到目前为止，公众已经向新闻界写信表达他们对学生们的感激之情了。