adv.徒劳地，无益地...

fruitlessly的音标：fruitlessly的英式发音音标为：['fru:tləslɪ]fruitlessly的美式发音音标为：['frutləslɪ]...

Four years of negotiation ended fruitlessly last December.历时4年的谈判在去年12月无果而终。The donkey became extremely angry and tried hard to kick the tiger but fruitlessly.毛驴很愤怒，尝试着用蹄子踢老虎，但没成功。...