| 单词 | 否有效 |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔DOUBT〕The doctor said she was doubtful that antibiotics would work. 医生说她不敢肯定抗生素是否有效。朗文写作活用〔EARLY〕It's still too early to tell if the treatment is going to be effective. 现在讲这种疗法是否有效还为时过早。朗文写作活用〔ceasefire〕UN officials are expressing cautious optimism that the latest ceasefire is holding.联合国官员对于最近的停火协定是否有效持谨慎的乐观态度。柯林斯高阶〔debatable〕It is debatable whether or not antibiotics would make any difference.抗生素是否有效仍值得商榷。外研社新世纪〔experimentally〕The treatment has been used experimentally, but it is too early to tell whether it works.这种治疗方法曾试用过，但要断言是否有效还为时过早。麦克米伦高阶〔litmus test〕Ending the fighting must be the absolute priority, the litmus test of the agreements' validity.停火绝对是第一要务，也是检验协议是否有效的试金石。柯林斯高阶〔notarize〕To certify or attest to (the validity of a signature on a document, for example) as a notary public.公证：检验或证明（如文件签字是否有效），作为公证美国传统〔notary public〕A person legally empowered to witness and certify the validity of documents and to take affidavits and depositions.公证人：有合法权力作证和检验文件是否有效的人，并可接受口供书和宣誓书美国传统〔passport〕I need to check that your passport is in order.我要检查一下你的护照是否有效。朗文当代〔respond〕It remains to be seen whether the cancer will respond to treatment.这种疗法对癌症是否有效，仍待观察。剑桥高阶〔sounding board〕A person or group whose reactions to an idea, opinion, or point of view will serve as a measure of its effectiveness or acceptability.被咨询的人：一个或一群人，其关于思想、看法或观点的反应将被作为它们是否有效或能否被接受的尺度美国传统〔time〕Only time will tell if the treatment has been successful.只有时间会证明这种治疗是否有效。朗文当代〔valued〕Further studies will be needed to see if these therapies have any value.这些治疗是否有效需要进行进一步的研究。柯林斯高阶〔value〕Further studies will be needed to see if these therapies have any value.这些治疗是否有效需要进一步研究。外研社新世纪〔way〕There's no way of knowing if the treatment will work.没有办法知道这种治疗方法是否有效。朗文当代Check that your work permit is in order.查看一下你的工作许可证是否有效。牛津商务I doubt whether it'll work.我怀疑这是否有效。剑桥国际 |
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