择: select; pick; choose必择其一: alternative二者择其一: a door must be either shut or open; a drowning man will clutch at a straw任择其一: alternative二者任择其一: choose either of the two二者只能择其一: the inclusion of one is the exclusion of the other他将会选择其一: he will do one of two things于两者中选择其一: decide between其一: kiichi郭其一: qi-yi guo其一的: either or其一郎: kiichiro其一切: its everything首先、其一: for one thing必居其一: it must be one or the other此其一端: this is one aspect of the matter举其一端: just to mention one example reason两者其一: either其一切全新: its all brand new, youll feel it in my kiss其一站完成: one piece flow指明其一: expressio unius est exclusio alterius只是其一: just one of those things只有其一: just one of those things二者必居其一: 1 chance sur 2; es kann nur eins von beiden geben/entweder das eine oder das andere; half a chance; une chance sur deux知其一,不知其二: be aware of one aspect but ignorant of the otherhave only a one-sided viewhave only a partial understanding of a situationknow only one aspect of a thingknow sth. about a thing but not enough to count