1.
ADJ-GRADED
有用的；可用的；有助益的 If something is useful, you can use it to do something or to help you in some way.
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The slow cooker is very useful for people who go out all day...
慢炖锅对于整天都不在家的人来说很有用。
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Hypnotherapy can be useful in helping you give up smoking...
催眠疗法可能有助于你戒烟。
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The police gained a great deal of useful information about the organization.
警方收集到了大量关于该组织的有用信息。
usefully
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...the problems to which computers could be usefully applied...
可以利用计算机解决的问题
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We need to find ways of dealing creatively and usefully with our feelings.
我们需要找到一些既有创意又实用的方法来调整我们的情绪。
usefulness
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His interest lay in the usefulness of his work, rather than in any personal credit.
他的兴趣在于所从事的工作是有用的，而不在于什么个人荣誉。
- Noun
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1. the quality of being of practical use
- synonym： utility
- antonym： inutility，uselessness，unusefulness
法律
- 1.效用
- 1. Badly written questions limit the usefulness of questionnaires.
- 问题设计得不好，调查问卷的用途就会打折扣。
来自《简明英汉词典》
- 2. He has outlived his usefulness.
- 他已老而无用了。
来自《简明英汉词典》
- 3. I hope l shall never survive my usefulness.
- 我希望在我有生之年永远不要变成废物。
来自《现代英汉综合大词典》
- 4. I was persuaded of the usefulness of his new device.
- 我相信了他的新装置的实用性。
来自《简明英汉词典》
- 5. It is of the greatest usefulness.
- 它是极有用的。
来自《现代汉英综合大词典》
- 6. Man early learned the usefulness of weapons.
- 人类很早以前就知道了武器的用处。
来自《现代汉英综合大词典》
- 7. The advisory group has outlived its usefulness.
- 顾问组已失去了它的作用。
来自《简明英汉词典》
- 8. The index adds appreciably to the usefulness of the book.
- 索引明显地增加了这本书的实用价值。
来自《现代英汉综合大词典》
- 9. The report is of potential usefulness to the government.
- 这个报告可能对政府有用。
来自《简明英汉词典》
- 10. The theory is of limited usefulness.
- 这个理论用途有限。
来自《简明英汉词典》
