In two thousand eight they had close to two million students -- nearly three times more than in two thousand.
VOA: special.2010.07.29
When you go into the Coulombic term here, 3*2 instead of one times one, it's three times two.
当你想到库仑力时,和1*1相比,这是。
*2=6 So I have three times two is six.
由于。
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