“盖楼”就是建造房子或大楼，工人用砖头和水泥一层一层地把楼建起来。

"盖楼" means building houses or buildings, where workers use bricks and cement to construct the building layer by layer.

在网上，“盖楼”也可以指很多人在同一个帖子下面接着留言。

Online, "盖楼" can also mean many people replying one after another under the same post.