送交者: 猩猩人类 于 2007-02-13, 18:18:34:
回答: Straddle two boats, double-dipping, double-parking would be better. 由 fuzzify 于 2007-02-13, 17:51:27:
sitting on two chairs;
Between two stools you fall to the ground;
to serve two masters at the same time;
sit on the fence;