几楼：Several building ;
几号：What number is it?
短语
几号楼 Several building ; What size property ; Building a few
你去几号楼 You go to what floor ; You go to several Building No
你几楼几号 You what floor what ; Several of your few floor
例句
1.那你是14楼几号阿？
Which room of floor 14?
2.您住几号楼？几号房间？包里有些什么东西？估计什么时候丢的？我们马上就派人过去。
Which room and floor are you living? What was in the bag? When did you lose? Wait a moment, our colleagues will come immediately?
3.从开始的工业园到现在的办公大楼280号公路尽头的拐弯处，这几栋楼能容纳2600到2800名员工。
Started in an office par, eventually, got the buildings, we are in now the corner of the ends of280.and those buildings hold maybe 2600 or 2800 people
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