"look" 这个动词在英语中非常常用，可以表示多种含义，以下是一些常见的 "look" 短语及其例句：

1. look after

意思：照顾，照料

例句：She looks after her elderly parents.

2. look at

意思：看，观察

例句：Please look at the picture on the wall.

3. look back

意思：回顾，回想

例句：As we look back on the past year, we see many achievements.

4. look down on/upon

意思：轻视，看不起

例句：He never looks down on people who are less fortunate than he is.

5. look for

意思：寻找

例句：I've been looking for my keys all morning.

6. look forward to

意思：期待

例句：I'm looking forward to our vacation in the mountains.

7. look in

意思：顺便拜访

例句：Can you look in on your grandmother this afternoon?

8. look into

意思：调查，查看

例句：The police are looking into the cause of the fire.

9. look like

意思：看起来像

例句：She looks like her mother.

10. look out

意思：小心，注意

例句：Look out! There's a car coming.

11. look over

意思：查看，浏览

例句：Could you look over my essay before I submit it?

12. look through

意思：快速查看，浏览

例句：I looked through the menu but couldn't decide what to order.

13. look up

意思：抬头看，查阅

例句：Please look up the word in the dictionary.

14. look up to

意思：尊敬，钦佩

例句：I look up to my teacher for her knowledge and experience.

这些短语在日常英语交流中非常实用，可以根据不同的语境和需要灵活运用。