EXPOs are large public exhibitions.

世博会属于大型公共展览活动。

How Many Types of Expos Do You Know of?

你知道世博会有哪些类别吗？

Since 1982, China has attended 12 World Expos.

从1982年起，中国共参加了12次世博会。

We now use the professor for all future expos.

如今我们在之后的会议上都邀请了这位教授。

Some Expos are memorable for inventions that endure;

有些世博会因发明长久应用而得到世人铭记；