The number of electrons in an atom is deduced to be approximately equal to half the atomic weight.

原子中的电子数,将近是原子质量的一般。

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In today's dollars that would be approximately seventy-five billion dollars.

大约相当于如今的,750亿美元

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In fact, in part, because of this, we are only reading approximately half the book, the first five books, to be more specific.

事实上，也部份归因于此，我们大约只能读,其一半的篇幅，更确切的说是前五部。

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Just as forewarning for people who have forgotten what a median is, that means half of you--not approximately half, it means exactly half of you-- will be getting something like B+ and below and half will get something like B+ and above.

稍微提示下忘记中位数含义的同学,这也就是说,不是一半左右,是绝对一半的同学,会得到B+的成绩或更低的成绩,另一半会到B+的成绩或更高的成绩

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