到达最高点，此后再向下。
什么时候到达最高点呢？
过山车到达最高点的时候，我的心都提到嗓子眼儿了。
My heart was in my mouth when I reached the top of the roller coaster.
以及到达那个方向上的最高点，我还想知道那时的高度具体是多少。
It comes to a highest point and I want to know how high that is.
你必须在球弹起之后到达它的最高点之前击球。
You must hit the ball before it reaches its highest point after bounce.
你必须在球弹起之后到达它的最高点之前击球。
You must hit the ball before it reaches its highest point after bounce.
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