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单词库 \ 英汉词典 \

usefulness是什么意思

usefulness

英[ˈju:sfəlnəs] 美[ˈjusfəlnɪs]

n. 有用，有益，有效，效能；

相关单词 unusefulness

同义词

usefulness的同义词之：
worth convenience value utility

柯林斯高阶英汉双解学习词典释义

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.
例句
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。 Hypnotherapy can be useful in helping you give up smoking... 催眠疗法可能有助于你戒烟。
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.
例句
The accommodation is some distance from the clubhouse, so a hire car comes in useful. 住处离会所有一段距离，所以租一辆车会很有用。

英汉词典释义

n.
有用,有益,有效
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。 The report is of potential usefulness to the government. 这个报告可能对政府有用。 The theory is of limited usefulness. 这个理论用途有限。 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。 He has outlived his usefulness. 他已老而无用了。

英英词典释义

Noun
1. the quality of being of practical use

行业词典

法律：效用；

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