For example a bouncing ball tends to have a lot of ease in and out when at the top of its bounce.
比方说，一个弹跳的小球凡是在它达到顶点的时候都会有渐进和渐出。
For example, a bouncing ball tends to have a lot of ease in and out when at the top of its bounce.
例如，一个弹跳的球在它跳到顶部时趋向于缓入和缓出。
When play restarted almost immediately a bouncing ball was contested and water and sweat flew off the players' heads.
几乎是在比赛刚刚重新开始时，就出现了争抢反弹球的场面，水和汗夹从球员的头上飞溅出来。
Although seemingly defenceless, it is capable of simply flinging itself from its perch, curling up into a ball and bouncing off boulders and down steep slopes to safety.
虽然看上去无法自卫，它却可以从栖息的高位简单的将自己投掷出去，卷成一团在大卵石之间弹来弹去滚下险峻的斜坡抵达安全地带。
If there is an abrupt change of direction in their energy, from vertical to horizontal, such as when they accelerate across the court, bouncing the ball, there is a real danger of personal injury.
如果有垂直于地平线的力量突然改变方向，例如当他们快速地穿过球场，跳起来拿球，这对个人的伤害是很严重的。
Based on a completely inelastic bouncing ball model, a possible explanation for the bifurcation phenomena is presented.
采用完全非弹性蹦球模型分析了颗粒对容器底的冲击力，并给出了倍周期分岔现象的一种解释。
He was running and bouncing his ball when suddenly a fireball went down in front of him.
突然火球动了起来撞在一棵很大的树上。
He was running and bouncing his ball when suddenly a fireball went down in front of him.
突然火球动了起来撞在一棵很大的树上。
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