Replacement problem
[计] 置换问题
🧩 词语组成解析
🗣️ 情景例句
since her mother died.
因为她妈妈去世了。
He may get a grant to study abroad next year.
他明年也许会获得留学奖学金。
Alfred the Great acted his own spy,
阿尔弗雷德大帝曾亲自充当间谍。