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。
My father would burst into the kitchen bouncing a tennis ball.
我父亲会拍打着网球闯进厨房。
Look! They're bouncing a ball.
看！他们正在拍球。
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。
Belinda is bouncing a ball on her head.
贝琳达在他的头顶上弹着一个球。
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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