ADJECTIVE | VERB + USEFULNESS | PREPOSITIONADJECTIVE➤limited, some有限的/一定的用途▸➤general一般用途▸➤practical實際用途▸➤potential潛在用途VERB + USEFULNESS➤have有用途▸➤increase增加用途▸➤diminish, limit, reduce減少用途;限制用途◇Badly written questions limit the usefulness of questionnaires.問題設計得不好,調查問卷的作用就會打折扣。➤lose失去實用性◇Many people claim that the word has lost its usefulness.許多人聲稱這個詞已經用不上了。➤assess, determine, evaluate, examine評估效用;確定效用;檢驗效果➤question懷疑效用▸➤demonstrate, prove展示/證明效用▸➤outlive再無效用◇The advisory group has outlived its usefulness.顧問小組已失去了它的作用。PREPOSITION➤of... usefulness⋯的作用◇The theory is of limited usefulness.這個理論用途有限。➤usefulness for⋯方面的效用◇the exam's usefulness for ranking students考試在為學生排名次方面的作用➤usefulness in在⋯方面的用途◇the drug's usefulness in the treatment of cancer這種藥在癌症治療中的功效➤usefulness to對⋯的作用◇The report is of potential usefulness to the government.這個報告可能對政府有用。
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