不要过早地乐观（别在孵化前数鸡）。
我的祖父在镜子前要花上数小时来修理胡须。
My grandfather would spend hours in front of the mirror trimming his beard.
最后，再说个运算符**，它表示乘方，就是前一个数为底数，后一个数为指数的次幂运算。
Finally, the operator ** performs exponentiation; that is, it raises a number to a power.
数小时前我离开了录音室。
康普茶是一种古老民族药物，起源于数世纪前远东。
Kombucha is an old folk remedy which originated centuries ago somewhere in the far east.
根据每位选手比赛的总杆数累计总成绩，杆数低者名次列前。
The place in the competition will be bases on the two days lowest total score.
最初，枚举数定位在字符串中第一个文本元素前。
Initially, the enumerator is positioned before the first text element in the string.
不要在鸡蛋孵化前，就开始数小鸡。
他数星期来，有好几次在眩晕前，意识突然发生变化。
He had several sudden alterations in consciousness preceded by dizziness for several weeks.
董事长兼首席执行长布兰克梵(Lloyd Blankfein)已于数周前搬了进来。
Chairman and Chief Executive Lloyd Blankfein arrived a few weeks ago.
不要在孵出小鸡前就去数鸡蛋的数量。
抵达集市前还需要数小时的艰苦跋涉。
抵达集市前还需要数小时的艰苦跋涉。
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