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。

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.

youdao

不过突然间，我的滑雪板却改变方向滑出斜坡往一堆树冲过去，而且我停不下来。

But suddenly, my snowboard veered off the slope and into the trees. I couldn't stop.

youdao

例如同时运行着你不能突然改变方向，开始运行的角度大于45，没有变化的步伐度。

For example whilst running forward you can't suddenly change direction and start running in angles greater than 45 degrees with no change in pace.

youdao

例如同时运行着你不能突然改变方向，开始运行的角度大于45，没有变化的步伐度。

For example whilst running forward you can't suddenly change direction and start running in angles greater than 45 degrees with no change in pace.

youdao