“稀释血液”也很流行，徒劳无功地，有时候还是致命的。
"Thinning the Blood," was also very popular, fruitlessly useless, and sometimes deadly.
昨天，四艘救援船和一架直升飞机徒劳无功地搜寻斯金纳，今天搜寻工作再度展开。
Four rescue boats and a helicopter searched in vain for Skinner yesterday and resumed the hunt today.
和西西弗斯一样，巨石费力地向上滚动，结果又滚了下来，徒劳无功。
As with Sisyphus, the boulder was painstakingly rolled upwards only to tumble back down again in an absurd exercise of futility.
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