Toupper
小写字母转换成大小字母
🗣️ 情景例句
Here.
这里 。
This offer must be withdrawn if we haven't received your reply within five days.
如果5天之内我方未必到贵方答复，该盘撤消。
Mr.Thompson is going to sell it because it is haunted.
汤普森先生之所以想卖它，是因为那里常闹鬼。