Both events can have important effects on weather systems and climates around the world.

VOA: special.2009.09.29

What you get instead is there are separate pre-wired systems for reasoning about the world.

取而代之的是,独立且预置的关于世界的认知系统

耶鲁公开课 - 心理学导论课程节选

Now, in the world of Linux and Unix more generally, both of which are our operating systems that had been around for many, many years, Mac OS is based on one of-- one version thereof.

在Linux和Unix里更广泛，对了，这两个都是历史悠久的,操作系统，就连Mac操作系统,都是基于它的一个版本设计出来的。

哈佛公开课 - 计算机科学课程节选

The country has one of the best earthquake early warning systems in the world.

VOA: special.2011.03.21

It could not stand apart from the world's other money systems.

VOA: special.2010.07.01

Most of the developed world has gone through exercises to prepare their systems in the event of a pandemic.

VOA: standard.2009.04.28

An Australian company, Electro Optic Systems, has received a $3.5 million government grant to develop the world's first automated, high-precision, laser tracking technology.

VOA: standard.2010.07.24

Chan says fragile health systems in the developing world will come under increased stress.

VOA: standard.2010.01.02