It can use nearly all existing iPhone apps. These can either run in a small, iPhone-size window in the middle of the screen, which makes them look tiny, or blown up to double size.

几乎所有现有的iPhone应用程序均可用于iPad，既可在屏幕中央以iPhone大小的窗口运行，亦可扩大成两倍的尺寸显示。

youdao

The objects found in Project Twenty-three could double the size of the research center's collection.

VOA: special.2010.04.07

So supposed that the list is not of size 8, let's make it slightly more interesting and double it.

假如列表的大小不是，为了更有趣，使其加倍。

哈佛公开课 - 计算机科学课程节选

Now this happens to be what we would call a linear process, because the number of times I go around the loop is directly related to the size of the argument. If I double 2 the argument, I'm going to double the number of times I go around the loop. If I increase it by five, 5 I'm going to increase by five the number of times I go around the loop.

这恰好是我们会成为,线性复杂度程序的一个例子,因为我要执行循环的次数是,和输入的参数的大小直接相关的,如果我将这个参数乘以,那么我就要将进行循环的次数也乘以2了，如果我把参数加上,那么循环的次数也要加上5了。

麻省理工公开课 - 计算机科学及编程导论课程节选

Over the next 24 years, the Medicare and Medicaid program will nearly double in size and double in the number of people who benefit from it.

FORBES: Magazine Article

It could double the size of the cholesterol drug market to 70 million people.

FORBES: On The Cover/Top Stories

The Al-Rafiqs plan to double the size of their herd, to 1, 000 goats, by 2010.

FORBES: Magazine Article