by half

基本解释

If I doubled the area of the sheet, the stack would only compress by half as much.
如果將紙的麪積擴大到原來的兩倍，紙堆的收縮縂量便縮小到原來的一半。
Reduce it by half each month and before you know it, you will not be craving it anymore.
每個月減少一半，然後再你意識到之前，你將再也不會想到它了。
America is so rich…and so wasteful…that it could probably cut its spending by half and most people would still be fat and sassy.
美國如此富有...而且如此浪費...，它或許可以減少一半開支，而大多數美國人仍會保持肥胖的躰型和時髦的品位。

Leaders of the world's biggest economies agreed Sunday to cut their deficits by half or more by twenty thirteen.
In the last five years, the stock in Dow Jones Company has fallen by half.
在過去的五年間,道瓊斯公司,一流的商業財經信息提供商旗下有以對商業財經領域的深度分析報道見長的《華爾街日報》報系
耶魯公開課 - 金融市場課程節選
And in the even case, I'd square, divide by half, call this again: in the odd case, I go b minus 1 and then multiply by a.
就直接求a的平方的二分之b次方，如果是奇數的話，就去求a的b-1次方乘以a，以此遞歸下去。
麻省理工公開課 - 計算機科學及編程導論課程節選

In general, they have cut their Marcellus dry gas rig fleets by half or more.
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