1bound

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【释义】：

vi．跳起，边跳边跑，(球等)跳回：The ball struck the wall and 1bounded back to me．球碰著墙又弹回来了．Big rocks were 1bounding down the hillside．大石头顺著山腰滚下来．

－n．跳跃：at a 1bound 一跳，一跃．by leaps and 1bounds突飞猛进地：China’s productive forces are developing by leaps and 1bounds．中国的生产力突飞猛进地发展著．