For example, many street corners in Paris,France show the work of an artist known as Space Invader.

VOA: special.2009.04.08

So imagine the following example, an invader is thinking about invading a country, and there are two ways -- there are two passes if you like -- through which he can lead his army.

想象一下这样的例子,一个侵略者打算入侵一个国家,有两条路,想象成两个关口也行,侵略者必须通过一个才能进入

耶鲁公开课 - 博弈论课程节选

Space Invader was the name of a video game that was very popular in the nineteen eighties.

VOA: special.2009.04.08

If you like his work, you can even buy Space Invader clothing, shoes,and pictures.

VOA: special.2009.04.08

Space Invader has been making this art for about ten years.

VOA: special.2009.04.08

Space Invader has traveled to places like Dhaka,Bangladesh;

VOA: special.2009.04.08