Toupper
小写字母转换成大小字母
🗣️ 情景例句
You've got the facts wrong.
你把事实搞错了。
We really appreciate your being our partners.
我们真诚地感谢你们成为我们的客户。
Boxing matches were very popular in England two hundred years ago.
两百年前，拳击比赛在英国非常盛行。