英语词汇“usefulness”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	usefulness
释义	usefulness noun uncountable UK /ˈjuːsf(ə)lnəs/ DEFINITIONS1 1 the fact of being useful, or the ability to be useful in particular situations I’m not sure about the usefulness of her observations. outlive its usefulness (=no longer be useful): Many people think the system has outlived its usefulness. Synonyms and related words Usefulness and efficiency usefulness efficiency effectiveness usefulness noun uncountable US /ˈjusfəlnəs/ DEFINITIONS1 1 the fact of being useful, or the ability to be useful in particular situations I’m not sure about the usefulness of her observations. outlive its usefulness (=no longer be useful): Many people think the system has outlived its usefulness. Synonyms and related words Usefulness and efficiency usefulness efficiency effectiveness
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