x Xo must be x zero-- - which I conveniently choose zero-- plus 133 meters per second, which is the velocity in the x direction, which never changes.
回到这个点的时候，x，then，when，it，is，back，at，this，point，肯定是-,为了方便我用0表示-,加上133米每秒，这是X方向的速度，它没有变过。
There is a rare condition known as Turner's Syndrome where a genetic female (XX) is missing one of the X chromosomes and she is known as an XO girl.
有一种罕见的疾病叫作“特纳氏综合症”(Turner ' s Syndrome)。患有这种疾病的女性，性别基因(XX)缺失了一条染色体x，所以也被称为XO女孩。
Well, maybe I should actually put this here, y=x y=x OK, and so I will go, for each value of x x I will go from y equals xo to y equals square root of x.
我应该把它放到这里，和y=√x，y，equals，x，to，y，equals，square，root，of，x。,对于每个x，都是会从,积到y=√
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