| 词汇 | thesaurus_articles_useful |
| 释义 | usefulThese words describe things that are good for helping you to do or achieve something. The most commonly used word is useful. It is used to describe objects as well as abstract things like help and advice. These useful gadgets should find a home in every kitchen. I hope you’ll find my advice useful. The opposite of useful is useless. The machine is nothing more than a useless piece of metal. For more opposites of useful, see the article at useless. If something is useful because it helps you do or achieve something, you can describe it as helpful or valuable. They gave us some really helpful advice. He was able to provide the police with some valuable information. The adjective invaluable means extremely useful. The Internet is an invaluable resource for teachers. Something which is valuable because it gives information that helps you improve may be described as constructive. It was a very constructive discussion. Constructive criticism can be very helpful. You can say that an activity is worthwhile if it is useful enough to be worth doing, even though in involves a lot of effort or takes a long time. It's a difficult course but it's very worthwhile. If speech or writing contains a lot of useful information, you can describe it as informative or instructive. It's an interesting and highly informative book. We had a very instructive discussion. Something that is functional does the job that it is supposed to do. Functional can imply that the thing is not decorative or nice to look at. Utilitarian can be used in the same way. The furniture is functional, not fashionable. On the shelves there is a mixture of utilitarian and decorative objects. Something which is useful because it is simple to use is often described as handy. That's a handy little gadget. If you say that a system, organization, or person is efficient, you mean that they work well, especially because they are well-organized. There has to be a more efficient way to handle the problem. You can use the word working to refer to a plan, idea, or knowledge that is not complete but is good enough to be useful. The working hypothesis is that this is not cross-contamination. |
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