| 释义 |
DEFINITIVE EXAMPLES 权威例句〔ineffectually〕They struggled ineffectually for reform.他们奋力改革，但劳而无功。韦氏高阶〔rallied〕They tried to rally the pound sterling but in vain.他们企图恢复英镑币值，但劳而无功。21世纪英汉〔search〕I spent the next three hours in a fruitless search for a replacement.接下来的三小时我一直在找东西替代，但劳而无功。朗文当代〔unprofitable〕The day proved frustratingly unprofitable.今天是劳而无功的一天，令人十分沮丧。柯林斯高阶 |