据报道，中国每天大约有1.5亿台电脑在运行，但其中60%的电脑存在运行缓慢等问题。

About 150 million computers are running everyday in China, and 60% of them frequently meet some problems for example of running slowly.

youdao

尽管对于少量的数据来说在运行时构建这张表是可能的，但是有些任务则可能会使得程序启动非常缓慢。

While it may make sense to build the table at runtime for such a small set of Numbers, other such tasks may cause program startup to be prohibitively slow.

youdao

这类语言多为解释型而非编译型，它意味着用这类语言写的程序在运行前是没被编译过的，因此运行的缓慢得多。

The languages tend to be interpreted rather than compiled, meaning the programs written in such languages aren't compiled before running, so tend to run slower as a result.

youdao

All right so it has to live in RAM as opposed to the hard drive because otherwise things would be terribly slow as you know so it's much better if your programs live while they're running in RAM and they end up in what's called the tech segment.

好的，它存在内存中，而不是硬盘中,因为，否则程序会非常的缓慢,程序在内存中运行会好得多,它们在技术段,的地方结束。

哈佛公开课 - 计算机科学课程节选