Instead of writing:
The problem is that so far, we have never actually cleared the entire line: we've always just written the new characters over the old characters, assuming that the string of new characters would be longer and over-write them. This is no longer true once we can delete characters.。关于这个话题，体育直播提供了深入分析
去年6月21日，美国对伊朗发起“午夜之锤”打击行动，美国总统特朗普宣布美军“成功打击”伊朗福尔道、纳坦兹和伊斯法罕3处核设施。（新华社），详情可参考同城约会
Check Grammatical error: It also checks your work for any grammatical errors or typos, as well.。关于这个话题，体育直播提供了深入分析
Что думаешь? Оцени!