careful

adj.

1. 小心；注意；谨慎
   giving attention or thought to what you are doing so that you avoid hurting yourself, damaging sth or doing sth wrong
   1. Be careful!
      小心！
   2. He was careful to keep out of sight.
      他小心翼翼地躲开别人的视线。
   3. Be careful not to wake the baby.
      注意别吵醒了宝宝。
   4. You must be careful when handling chemicals.
      接触化学药品必须小心谨慎。
   5. Be careful of the traffic.
      注意交通安全。
   6. Please be careful with my glasses (= Don't break them) .
      请当心别打碎我的眼镜。
   7. Be careful you don't bump your head.
      留神别撞了头。
2. 细致的；精心的；慎重的
   giving a lot of attention to details
   1. a careful piece of work
      精雕细琢的作品
   2. a careful examination of the facts
      对事实的仔细调查
   3. After careful consideration we have decided to offer you the job.
      经过慎重考虑后，我们决定给你这份工作。

1. ADJ-GRADED 小心的;仔细的;谨慎的
   If you are careful, you give serious attention to what you are doing, in order to avoid harm, damage, or mistakes. If you are careful to do something, you make sure that you do it.
   1. Be very careful with this stuff, it can be dangerous if it isn't handled properly...
      这东西一定要小心,稍不注意的话就会有危险。
   2. Careful on those stairs!...
      走那几段楼梯要当心!
   3. We had to be very careful not to be seen...
      我们得小心翼翼,不能被发现。
   4. Pupils will need careful guidance on their choice of options.
      小学生在作出选择时需要悉心指导。
2. ADJ-GRADED 仔细的;周密的
   Careful work, thought, or examination is thorough and shows a concern for details.
   1. He has decided to prosecute her after careful consideration of all the relevant facts...
      在认真考虑了所有相关事实后,他决定起诉她。
   2. What we now know about the disease was learned by careful study of diseased organs.
      我们目前对该疾病的认识是通过对病变器官的仔细研究得来的。
3. ADJ-GRADED 当心的;小心的;慎重的
   If you tell someone to be careful about doing something, you think that what they intend to do is probably wrong, and that they should think seriously before they do it.
   1. I think you should be careful about talking of the rebels as heroes...
      我觉得你说话应该小心,不能把反叛分子当英雄。
   2. It is important, I think, for everyone to be careful about claiming victory.
      我想,每个人宣布胜利时都应该慎重。
4. ADJ-GRADED 节约的;节省的
   If you are careful with something such as money or resources, you use or spend only what is necessary.
   1. You will have to make a special effort to train your child to be careful with her pocket-money...
      你得格外注意培养孩子的节俭意识，零花钱要省着花。
   2. It would force industries to be more careful with natural resources.
      这将迫使企业更加节约资源。
5. PHRASE 越谨慎越好;再小心也不为过
   You can say 'You can't be too careful' as a way of advising someone to be careful, even when this seems unnecessary.
   1. You can't be too careful when a young child is near water.
      孩子在水边时,还是越小心越好。

1. He was always careful to avoid embarrassment.
   他总是小心谨慎地避免尴尬。
2. Choose a warm, dry day to cut them off the plants, being careful not to bruise them.
   选一个干燥暖和的日子把它们从植株上割下来，注意不要碰伤它们。
3. Be very careful with this stuff, it can be dangerous if it isn't handled properly
   这东西一定要小心，稍不注意的话就会有危险。
4. Careful on those stairs!
   走那几段楼梯要当心！
5. We had to be very careful not to be seen
   我们得小心翼翼，不能被发现。
6. Pupils will need careful guidance on their choice of options.
   小学生在作出选择时需要悉心指导。
7. He has decided to prosecute her after careful consideration of all the relevant facts
   在认真考虑了所有相关事实后，他决定起诉她。
8. What we now know about the disease was learned by careful study of diseased organs.
   我们目前对该疾病的认识是通过对病变器官的仔细研究得来的。
9. I think you should be careful about talking of the rebels as heroes
   我觉得你说话应该小心，不能把反叛分子当英雄。
10. It is important, I think, for everyone to be careful about claiming victory.
    我想，每个人宣布胜利时都应该慎重。
11. You will have to make a special effort to train your child to be careful with her pocket-money
    你得格外注意培养孩子的节俭意识，零花钱要省着花。
12. It would force industries to be more careful with natural resources.
    这将迫使企业更加节约资源。
13. You can't be too careful when a young child is near water.
    孩子在水边时，还是越小心越好。
14. I owe a debt of thanks to Joyce Thompson, whose careful and able research was of great help
    我要衷心地感谢乔伊斯·汤普森先生，他严谨而卓著的研究给予了我极大的帮助。
15. I'd have to be extra careful
    我不得不格外小心。
16. I'm sure you will appreciate that we must keep a careful eye on all our running costs
    我们必须密切关注所有的运营成本，这一点我想您肯定会赞同。
17. I asked her to be more careful in future
    我要她以后要更加小心。
18. You have to be careful what you say on telly
    在电视上说话时你必须很谨慎。
19. I have to be more careful with the work tops, as wood marks easily.
    我必须格外小心使用操作台，因为木头容易留下污迹。
20. If you are not careful, children tend to neglect their homework.
    如果你不注意的话，孩子们往往会不重视他们的家庭作业。
21. Be careful not to slip.
    小心，别滑倒了。
22. She kissed me, careful not to smudge me with her fresh lipstick
    她小心翼翼地吻了我，以免把刚刚抹上的口红弄到我脸上。
23. Careful, there I go again, getting sentimental.
    看看，我又来了，又开始多愁善感了。
24. Be careful she's not just using you
    当心她不只是在利用你。
25. If it's lost, it's lost. Just be more careful from now on.
    丢了就丢了吧，以后小心点。
26. One cannot be too careful in guarding Party and state secrets.
    保守党和国家的机密，慎之又慎。
27. Be careful! Don't jab his eye out with your bamboo pole.
    小心！你的竹竿别捅了他的眼睛。
28. Be careful! Don't get your clothes wet.
    小心点，别湿了衣裳。
29. You must be careful as to what you say or do.
    你说话做事都要当心。
30. You should give it careful reconsideration.
    你应该仔细地重新考虑一下这个问题。

  prudent careful cautious【导航词义：谨慎的，小心的】

  prudent adj. 慎重的

〔辨析〕指明智而谨慎的，尤指避免不必要的风险，不贸然行事。

  careful adj. 谨慎的，小心翼翼的

〔辨析〕指非常小心的，力求避免做错事或造成损失。

  cautious adj. 小心的，谨慎的

〔辨析〕既可指人谨慎细心的，也可指态度、批评方式等经过仔细考虑的，目的在于避开危险或风险。

adj.

you can't be too careful

• 无论怎样小心也不会过分；越小心越好
  used to warn sb that they should take care to avoid danger or problems
  1. Don't stay out in the sun for too long─you can't be too careful.
     别在太阳底下待得太久，你得尽量小心。

careful with money

• 花钱精打细算；不乱花钱
  not spending money on unimportant things