英语词汇“labor in vain”的释义、用法及例句翻译-英汉例句词典

词汇	labor in vain
例句	She has labored in vain to convince them to accept her proposal.她努力说服他们接受她的提议，最终是白费力气。
随便看	security-minded security officer security of tenure security personnel security police security policy security regulations security risk Security Service security service security staff security system security van sedan sedans Sedares sedate sedated sedately sedation sedative sedatives sedentary sediment sedimentary

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