1 used when the person or people being spoken to do an action and are also affected by it （表示说话对象受自己行为影响）你自己: Be careful or you'll hurt yourself. 小心，不然会伤到自己。Here's some money. Buy yourselves a present. 这里有些钱，你们给自己买份礼物吧。You're always talking about yourself! 你老是说自己的事！

2 used to emphasize sth （用于强调）: You yourself told me there was a problem last week. 是你自己告诉我上星期出现过问题的。Did you repair the car yourselves? (= or did sb else do it for you?) 这汽车是你自己修理的吗？

3 you 你；你们: ‘How are you?’ ‘Fine, thanks. And yourself?’ “你好吗？”“挺好，谢谢。你呢？”

4 in your normal state; healthy 处于正常状态；健康: You don't look yourself today. 你今天看来有点不对劲。

1 alone 单独；独自: Do you live by yourself? 你独自居住吗？ ☞Look at the note at alone. 参看alone的注释。

2 without help 独力: You can't cook dinner for ten people by yourself. 你一个人做不出十个人的晚餐。