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. 有用的；可用的；有助益的
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The slow cooker is very useful for people who go out all day. [+ for]
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. [+ in]
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。
SYN helpful, effective, valuable, practical
usefully -
...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 -
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。
2 PHRASE 有用；派得上用场 If an object or skill comes in useful, it can help you achieve something in a particular situation. 有用；派得上用场
| Word Partnership | Use useful with: |
| ADV. | also useful, especially useful, extremely useful, less/more useful, particularly useful, very useful 1 |
| N. | useful information, useful knowledge, useful life, useful purpose, useful strategy, useful tool 1 |
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