雅利安人发动了几次徒劳的针对波塞迪亚人的恐怖袭击, 但每次都被平息了.
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He's been thrashing about for an answer to the difficulty, but without success.
他一直在紧张不安地工作想找到解决这一难题的答案, 可终究是徒劳.
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But the two-toed tree toad tried in vain . He couldn't please her whim.
可是,二趾蟾蜍徒劳无功不能满足三趾蟾蜍女郎的心意.
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Our course of study takes as its assumption that ethical principles are unsystematic by nature.
本课程假设道德准则天生就是毫无体系的,这就是为何道德行为的决策过程是徒劳的了.
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A woman reports a colleague is smacking useless sprinkler heads with his shoe.
一位女士说,她的同事正徒劳地用脚猛踩喷水装置的喷嘴.
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He whistled and sounded his horn in vain ; the straggler paid no attention to the summons.
他徒劳地吹口哨和听羊角的声音,但是山羊完全不理会他.
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