Do you want one or two?
你要一個還是兩個？
The operation could prolong his life by two or three years.
這次手術(shù)可使他多活兩三年。
Well, I think she's either Russian or Polish.
嗯，我看她不是俄羅斯人就是波蘭人。
There is a large window on either side of the front door.
前門兩側(cè)各有一個大窗戶。