Oh...bitches who want to earn good money have to speak other languages...especially English, German etc. etc...so that bitches perhaps are not Germans...but speak German...
...This is Europe, the Continent where peoples speak various languages...
About "floor" thing: this is one of very confusing things - the differences between British and American English...
British English: first floor = 1. floor (upstairs...)
American: first floor = 0. floor (the ground floor)
...as far as I know...
