一是一,二是二 yī shì yī, èr shì èr
          
              yī shì yī, èr shì èr 
              
              phrase 
              one is one, two is two; things are (or ought to be) perfectly clear-cut; unequivocal 
              Domain: Proverb 谚语
              
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                , Concept:  
              
              
              
                Notes: (CC-CEDICT '一是一,二是二')