n.

1. 建筑物，房屋[C]
   The World Trade Center in New York City is one of the world's tallest buildings.

   纽约的世界贸易中心是世界上最高的建筑物之一。

2. 建筑；建筑术；建筑业[U]

n.

1. a structure with a roof and walls.
2. the process or trade of building houses and other structures.