一国两制

one or two put in one's two cents have two strikes against one two-for-one offer, buy one get one free bear two faces under one hood carry two faces under one hood put in one's two cents worth one central task, two basic points Two heads are always better then one kill two birds with one stone have two strings to one's bow two-one sided test two to one principle one-two-three two-in-one motor two to one rule two for one twister two-to-one principle two for one twisting two-for-one twister one or two two-plus-one address two-to-one ratio