在理论上,原则上
in theory adv 1: according to the assumed facts; "on paper the candidate seems promising" [syn: {theoretically}, {on paper}] 2: with regard to fundamentals although not concerning details; "in principle, we agree" [syn: {in principle}, {in essence}] 3: as described in contrast to as practiced; "on paper, this looks like a good idea" [syn: {on paper}]