世界

In a sentence

• 世界很大，还有很多值得探索的地方。

  The world is vast, and there are many places worth exploring.

  Here, '世界' is used to represent the physical world, the Earth.

• 在我的世界里，朋友和家人是最重要的。

  In my world, friends and family are the most important.

  In this sentence, '世界' metaphorically refers to one's personal sphere or realm of importance.

• 这个艺术展览展示了不同画家眼中的世界。

  This art exhibition showcases the world as seen by different painters.

  Here, '世界' represents the perspective or way of seeing life as depicted in the artworks.