world：n.世界;地球;天下;某地域(或民族、历史时期等)的人类社会;(像地球的)星球，天体；
复数： worlds
例：
Parents are the most important people in a childs world.
父母在儿童的天地里是最重要的人。
It's the best job in the whole wide world.
这是整个大千世界中最好的工作。
Many changes took place between the two world wars.
两次世界大战之间发生了很多变化。
Your education is bound to shape your world view.
一个人接受的教育必定会决定其世界观的形成。
Students come here from the four corners of the world.
学生从世界各地来到这里。
He's too young to understand the ways of the world.
他还太年轻，不懂得处世之道。
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