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重力英文是：gravity，读法：英['ɡr_v_ti]，美['ɡr_v_ti]。例句：1、Arrows would continue to fly forward forever in a straight line were it not for gravity, which brings them down to earth.要不是重力使箭掉落地上，它将会一直沿直线往前飞行。2、Its oscillation depends on the strength of the gravitational field.它的摆动取决于重力场的力。3、Increasing gravity is known to speed up the multiplication of cells.为人所知的是，不断增加的重力会加速细胞数量的递增。4、Nothing is pulling on you, only gravity.没有任何东西在拉你，只有重力。5、The stone rolled down the mountain by gravity.这块石头由于重力作用而滚下山。
