1. in other words  [换句话说；也就是说]
[构成]:in[在...里] + other[其他的] + words[单词；话语]
例句：He is not very smart. In other words, he is a bit stupid. [他不是很聪明。换句话说，他有点笨。]

2. in particular  [尤其；特别]
[构成]:in[在...里] + particular[特别的；详细的]
例句：I like this dress in particular. [我特别喜欢这件连衣裙。]

3. in person  [亲自；本人]
[构成]:in[在...里] + person[人]
例句：You should come in person. [你应该亲自来。]

4. in place  [在适当的位置；适当的]
[构成]:in[在...里] + place[地方；位置]
例句：Everything is in place. [一切都在适当的位置。]

5. in practice  [在实践中；实际上]
[构成]:in[在...里] + practice[实践；练习]
例句：It's easy in theory but difficult in practice. [理论上容易，实际上难。]

6. in public  [公开地；当众]
[构成]:in[在...里] + public[公众；公共的]
例句：Don't smoke in public. [不要在公共场合吸烟。]

7. in rags  [衣衫褴褛]
[构成]:in[在...里] + rags[破布；碎布]
例句：The beggar was in rags. [那个乞丐衣衫褴褛。]

8. in return  [作为回报；作为报答]
[构成]:in[在...里] + return[返回；报答]
例句：I gave him a gift and he gave me one in return. [我给他一份礼物，他给了我一份作为回报。]

9. in ruins  [成为废墟；严重受损]
[构成]:in[在...里] + ruins[废墟；毁坏]
例句：The city was in ruins after the earthquake. [地震后这座城市成了一片废墟。]

10. in short  [总之；简言之]
[构成]:in[在...里] + short[短的]
例句：In short, we should work hard. [总之，我们应该努力工作。]

11. in sight  [看得见；在望]
[构成]:in[在...里] + sight[视力；景象]
例句：The train is in sight. [火车在望。]

12. in spite of  [尽管；不管]
[构成]:in[在...里] + spite[恶意；怨恨] + of[关于]
例句：In spite of the rain, we went hiking. [尽管下雨，我们还是去徒步旅行了。]

13. in step  [同步；协调]
[构成]:in[在...里] + step[脚步；步骤]
例句：They walked in step. [他们步伐一致地走着。]

14. in stock  [有现货；有库存]
[构成]:in[在...里] + stock[库存；股票]
例句：This shirt is in stock. [这件衬衫有现货。]

15. in summary  [总之；概括起来]
[构成]:in[在...里] + summary[总结；概括]
例句：In summary, the project was successful. [总之，这个项目是成功的。]

16. in the end  [最后；终于]
[构成]:in[在...里] + the[定冠词] + end[结束；尽头]
例句：In the end, she found her keys. [最后，她找到了她的钥匙。]

17. in the face of  [面对；在...面前]
[构成]:in[在...里] + the[定冠词] + face[脸；表面] + of[关于]
例句：He was brave in the face of difficulties. [面对困难他很勇敢。]

18. in the future  [在未来]
[构成]:in[在...里] + the[定冠词] + future[未来；前途]
例句：I will be a doctor in the future. [我将来会成为一名医生。]

19. in the meantime  [与此同时；在此期间]
[构成]:in[在...里] + the[定冠词] + meantime[其间；同时]
例句：I'll do some reading. In the meantime, you can watch TV. [我会读点书。与此同时，你可以看电视。]

20. in the past  [在过去]
[构成]:in[在...里] + the[定冠词] + past[过去；往事]
例句：Life was different in the past. [过去的生活不一样。]