worthwhile

worthwhile
adjective
  1. worth the time, money, or effort spent; of value or importance
    值得花时间(金钱、精力等)的;有价值的
    extra lighting would make a worthwhile contribution to road safety.
    增加照明是值得的,它有助于道路的安全。
派生
worthwhileness
noun
用法
  1. When the adjective worthwhile is used attributively (i.e. before the noun) it is always written as one worda worthwhile causeHowever, when it is used predicatively (i.e. it stands alone and comes after the verb) it may be written as either one or two wordswe didn't think it was worthwhile/worth while
英语宝典
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