1. catch up [赶上；追上]
【构成】catch[抓住；赶上] ； up[向上]
【例句】You should study hard to catch up with others. [你应该努力学习赶上别人。]

2. catch on [理解；明白；变得流行]
【构成】catch[抓住；赶上] ； on[在…之上]
【例句】The new song is catching on quickly. [这首新歌很快流行起来。]

3. catch off guard [使措手不及；趁其不备]
【构成】catch[抓住；赶上] ； off[离开；脱落] ； guard[警卫；防备]
【例句】The sudden question caught him off guard. [这个突然的问题让他措手不及。]

4. catch one’s breath [喘口气；歇口气]
【构成】catch[抓住；赶上] ； one’s[某人的] ； breath[呼吸]
【例句】After running, I needed to catch my breath. [跑完后，我需要喘口气。]

5. catch sight of [看见；瞥见]
【构成】catch[抓住；赶上] ； sight[视力；景象] ； of[关于]
【例句】I caught sight of an old friend in the street. [我在街上瞥见了一位老朋友。]

6. catch fire [着火]
【构成】catch[抓住；赶上] ； fire[火]
【例句】The house caught fire last night. [昨晚这房子着火了。]

7. catch the bus [赶上公交车]
【构成】catch[抓住；赶上] ； the[定冠词] ； bus[公交车]
【例句】I ran fast to catch the bus. [我快跑赶上了公交车。]

8. catch hold of [抓住；握住]
【构成】catch[抓住；赶上] ； hold[握住；持有] ； of[关于]
【例句】He caught hold of the rope. [他抓住了绳子。]

9. catch at [试图抓住；抓住（机会等）]
【构成】catch[抓住；赶上] ； at[在]
【例句】She caught at the branch but missed. [她试图抓住树枝，但没抓住。]

10. be caught in [陷入；遇到（雨、雪等）]
【构成】be[是] ； caught[抓住；赶上] ； in[在…里面]
【例句】They were caught in the rain. [他们遇到了雨。]

11. catch up with [赶上；追上；和…算旧账]
【构成】catch[抓住；赶上] ； up[向上] ； with[和…一起]
【例句】I’ll catch up with you later. [我稍后会赶上你。]

12. catch in the act [当场抓住]
【构成】catch[抓住；赶上] ； in[在…里面] ； the[定冠词] ； act[行为；行动]
【例句】The thief was caught in the act. [小偷被当场抓住。]

13. catch a cold [感冒]
【构成】catch[抓住；赶上] ； a[一个] ； cold[感冒]
【例句】I caught a cold yesterday. [我昨天感冒了。]

14. catch one’s eye [引起某人的注意]
【构成】catch[抓住；赶上] ； one’s[某人的] ； eye[眼睛]
【例句】The colorful dress caught her eye. [那件色彩鲜艳的连衣裙引起了她的注意。]

15. catch fish [捕鱼；抓鱼]
【构成】catch[抓住；赶上] ； fish[鱼]
【例句】They often go to the river to catch fish. [他们经常去河边捕鱼。]

16. catch the thief [抓住小偷]
【构成】catch[抓住；赶上] ； the[定冠词] ； thief[小偷]
【例句】The police caught the thief at last. [警察最终抓住了小偷。]

17. catch someone red-handed [当场抓住某人正在做坏事]
【构成】catch[抓住；赶上] ； someone[某人] ； red-handed[正在作案的]
【例句】The police caught him red-handed stealing. [警察当场抓住他正在偷东西。]

18. catch up in [卷入；陷入]
【构成】catch[抓住；赶上] ； up[向上] ； in[在…里面]
【例句】Don’t catch up in their quarrel. [别卷入他们的争吵。]

19. catch a glimpse of [瞥见；看一眼]
【构成】catch[抓住；赶上] ； a[一个] ； glimpse[一瞥；一看] ； of[关于]
【例句】I caught a glimpse of her as she passed by. [她经过时我瞥了她一眼。]

20. catch the train [赶上火车]
【构成】catch[抓住；赶上] ； the[定冠词] ； train[火车]
【例句】We have to hurry to catch the train. [我们得赶紧去赶火车。]