【问】 a two-story house是否应改为a two-storey house?

【答】 storey和story都作“楼层”解，前者为英国英语.后者为美国英语。它们在语义上没有区别。又a two-storey house还可写作a two-storeyed house或a two-storied house(参见floor/storey)。