基本解釋[語(yǔ)言學(xué)]勞而無(wú)功英漢例句權(quán)威例句Caves were thought to be essentially devoid of life until six years ago, when the renowned University of Colorado microbiologist Norman Pace, also an avid caver, discovered a way to identify extremophile microorganisms by cloning and sequencing unique sections of their DNA. Prior to Pace's work biologists had fruitlessly tried to cultivate these microorganisms with traditional lab techniques using nutrient-rich petri dishes.FORBES: Magazine Articlework fruitlessly更多例句專業(yè)釋義語(yǔ)言學(xué)勞而無(wú)功