用法:
1 section of a building with rooms all at the same level; floor 楼层:
a house of two storeys 两层的楼房 *
live on the third storey of a block of flats 住在公寓楼的第四层楼上 *
a five-storey building 五层楼的大厦 *a multi-storey car-park 多层停车场.

用法:
2 (idm 习语) the top storey => top1.

• the three Rs
• the triple jump
• the unconscious
• the undermentioned
• the underprivileged
• the undersigned
• the unemployed
• the unexpected
• the Union Jack (also the Union flag)
• the United Kingdom (abbr 缩写 (the) UK)
• the United Nations (abbr 缩写 (the) UN)
• the United States (of America) (abbrs 缩写 (the) US, USA)
• the unwaged
• the unwary
• the Upper Chamber (also the Upper House)
• the utmost (also the uttermost)
• the vitals
• the weak
• the West Country
• the West End
• the White House
• the wicked
• the Wild West
• the `women's movement
• the working class (also the `working classes)