| 词汇 | effective |
| 释义 | effective 2 ENTRIES FOUND: effective (adjective) cost-effective (adjective) effective /ɪˈfɛktɪv/ adjective effective /ɪˈfɛktɪv/ adjective Learner's definition of EFFECTIVE 1 [more effective; most effective] : producing a result that is wanted : having an intended effect产生预期效果的；能达到预期目的的 drugs effective in the treatment of a disease = drugs effective in treating a disease = drugs effective against a disease有效治疗一种疾病的药物 It's a simple but effective technique.这是简单但有效的技术。 He gave an effective speech.他做了一次有影响的演讲。 — opposite ineffective 2 of a law, rule, etc. : in use : active （法律、规则等）生效的，起作用的 The law becomes effective [=the law takes effect; the law will start to be used] next year.这一法律明年开始生效。 the effective date of the law [=the day when the law starts to be used]法律的生效日期 3 : starting at a particular time — used to introduce a clause（用于引导从句）从…时间开始 Effective [=starting, as of] tomorrow, the store will be open until 8:00 p.m. every day.从明天起，商店每天将营业至晚8点。 Effective next month, the landfill will no longer accept old televisions.从下个月开始，这个垃圾填埋场将不再接收废旧电视机。 4 always used before a noun — used to describe something that exists or has an effect but that is not officially stated or recognized实际的；事实上的 the effective tax rate实际税率 The army has taken effective control of the city.军方实际上已接管了这座城市。 — effectiveness noun [noncount] The effectiveness of the drug was questioned.这种药的疗效受到质疑。 |
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