One is renowned for his hard, straight shot while the other is an expert at curling the ball around walls.
一个人以他的狠硬直球闻名,而另一个人则是穿越人墙的曲球专家。
Drag is the force of air resistance pushing against a ball's motion and slowing it down, while lift is a force causing a ball to swerve off a straight path.
拉力是一种物体在空气中所受到的阻力,它能产生与球运行方向相反的作用力,减缓球的运行速度,而升力则是一种能使物体偏离直线运行轨迹的力。
Lean on the ball as shown, keep the back flat or maintain its natural curve, with the legs straight.
身体俯卧于球体之上,动作如图所示。背部保持正直或保持自然弯曲状态,腿部伸直。
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