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BNC: 3637 COCA: 5396
unnecessary adj.
⇨ unnecessary (All this fuss is totally unnecessary.) ⇨ unjustified (unnecessary comments) unnecessary

adjective

unnecessary ♦︎ redundant ♦︎ needless ♦︎ avoidable ♦︎ preventable ♦︎ expendableThese words all describe things that are not needed or can be avoided. 这些词均表示不需要的、不必要的、可以避免的。PATTERNS AND COLLOCATIONS 句型和搭配◆an unnecessary / a needless / an avoidable / a preventable death◆unnecessary / needless / avoidable risk / suffering / distress◆unnecessary / needless duplication / waste / anxiety◆an unnecessary / an avoidable / a preventable accident◆an unnecessary / avoidable cost / delay◆largely unnecessary / redundant / preventable◆entirely unnecessary / avoidable / preventable◆completely / totally unnecessary / redundant◆easily avoidable / preventable■ unnecessary ʌnˈnesəsəri; NAmE ʌnˈnesəserinot needed; more than is needed 不需要的；不必要的；多余的◆Our first priority is to reduce unnecessary expense.我们的头等大事是减少不必要的花费。◆They were found guilty of causing unnecessary suffering to animals.他们因虐待动物而被判有罪。◆All this fuss is totally unnecessary.这场纷扰是完全可以避免的。ⓘ Unnecessary is often used to talk about how much money people are spending when they don't actually need to * unnecessary常用来表示人们花了多少钱，而实际上并不需要花那么多◆(an) unnecessary expense / expenditure / cost / luxury不必要的花费／开销／费用／奢侈品or how much pain or inconvenience they suffer when they don't need to. 或表示人们遭受了多少不必要的痛苦或不便◆unnecessary pain / suffering / hardship / delay / complication / difficulty / fuss / anxiety / worry不必要的痛苦／苦难／艰辛／延误／困难／难处／纷扰／焦虑／担心 OPP necessary ⇨ necessary ▸ unnecessarily

adverb

◆There's no point worrying him unnecessarily.没有必要让他过于担心。■ redundant rɪˈdʌndənt (rather formal, especially written) not needed or useful 多余的；不需要的；无用的◆There's a lot of redundant information that you could cut out here.这里有许多可以删掉的不必要的信息。■ needless (rather formal, especially written) that could or should have been avoided 不必要的；应当避免的◆The report caused needless anxiety to hundreds of women.报告引起了数百名妇女不必要的焦虑。◆Banning smoking would prevent needless deaths.禁止吸烟可以防止不必要的死亡。ⓘ Needless is used especially to describe death, suffering, anxiety, fuss, risk and waste. Needless often suggests a sense either of regret or of criticism. * needless尤用来修饰death、suffering、anxiety、fuss、risk和waste，往往暗含遗憾或批评之意。▸ needlessly

adverb

◆Many soldiers died needlessly.许多战士无谓地牺牲了。■ avoidable (rather formal) that can be prevented 可以避免的；可以防止的◆Many deaths from heart disease are actually avoidable.许多因心脏病造成的死亡实际上是可以避免的。 OPP unavoidable ⇨ inevitable ■ preventable (rather formal) that can be prevented 可以避免的；可以防止的◆Each year some 14 million young children die of preventable diseases.每年大约有1 400万幼儿死于可以防止的疾病。NOTE 辨析 Avoidable or preventable? Preventable is mainly used to talk about medical conditions and accidents. * preventable一般修饰疾病和事故◆a preventable death / disease / illness / infection / accident可以避免的死亡；可以防止的疾病／感染／事故 Avoidable appears in a wider range of general collocations but is not used to talk about medical conditions. 与avoidable搭配的词范围更广，更普遍，但avoidable不能修饰疾病◆(an) avoidable death / accident / risk / delay / cost / suffering / distress可以避免的死亡／事故／风险／延误／费用／痛苦／忧虑◆avoidable diseases/illnesses ■ expendable (rather formal, especially business 尤用于商业) if you consider people or things to be expendable, you think that you can get rid of them when they are no longer needed, or think it is acceptable if they are killed or destroyed 可牺牲的；可消耗的；可毁灭的◆It is a sad moment when you realize you are expendable in your job.认识到自己在工作中是可以牺牲掉的，这一刻真让人悲哀。

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