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Crawl: a stroke made in the prone position characterized by alternate over arm movements and a continuous up-and-down kick; originally known as the australian crawl. 即采用俯臥姿勢，以雙臂連續(xù)輪流劃水、雙腿上下連續(xù)打水為特點，最初通稱為澳大利亞爬泳。