Bad breath originating outside the mouth or nasal passages is, in fact, quite uncommon.
Bad breath originating outside the mouth or nasal passages is, in fact, quite uncommon.
其实除了口鼻以外，很少有其他状况会引起口臭。
Bad breath originating outside the mouth or nasal passages is, in fact, quite uncommon.
其实除了口鼻以外，很少有其他状况会引起口臭。