the position of the highest point P we first ask ourselves the question from equation number four: 0 when is the velocity in the y direction zero?
为了找到最高点P的所在,我们首先得,解答我们刚才提出的问题：,究竟何时y方向上的速度减为？
A day and night for eighty-six thousand four hundred seconds, a "flash" only zero point zero one eight seconds.
一昼夜有八万六千四百秒，一“刹那”却只有零点零一八秒。
Ok - credibility, the friend that spotted it had like a four point zero grade average at a local college.
行-诚信，朋友，发现它曾经像四点零在当地一所大学平均成绩。
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