This drift has been studied extensively in many animals and in biological activities ranging from the hatching of fruit fly eggs to wheel running by squirrels.

在许多动物中，以及在诸如果蝇卵的孵化乃至松鼠跑动的转轮这样的生物活动中，这种变化趋势一直受到广泛的研究。

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We have a choice: take effective action or be like a mouse in a wheel, always running, getting nowhere.

我们有得选择：要么做有效的行动，要么像老鼠一样到处乱窜，却哪儿也去不了。

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Four-wheel drive lets you outrun zombies in any road conditions, plus gives you better traction for running over any zombies who get in your way.

无论什么路况，四轮驱动都能让你摆脱僵尸，还给你更大的牵引力碾过挡路的僵尸。

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The open-wheel series is running a second, full-length race in the same weekend for the first time Sunday when Conway will start up front for the first time in his career.

NPR: Conway Wins 1st Of 2 Races At Detroit Grand Prix