This is the 2514th most frequent Chinese word.
桥梁
Bridge; a structure connecting two places.
In this sentence, '桥梁' is used literally to denote a bridge as a structure that spans a physical gap, often over water or a valley, facilitating transportation.
这是一座非常古老的桥梁，已经有百年历史了。
This is a very old bridge, it has a hundred years of history.
Here, '桥梁' is used metaphorically to refer to a medium or means of connecting two entities, in this case, cultures through education.
老师强调，教育是文化交流的桥梁。
The teacher emphasized that education is the bridge for cultural exchange.
In this example, '桥梁' again refers to the physical structure of a bridge, highlighting its role in enabling economic improvement through better connectivity.