The quality or state of being rare ; infrequency of occurrence .
罕见，稀有少见的品质或状态；发生的次数不多。
She was an invaluable source of information for western journalists who in the last few years were visiting chechnya with embarrassing infrequency .
在过去的这些年，她是西方记者价值无可估量的信息来源这些人去车臣的次数足以令其尴尬。
Given the infrequency of his public appearances , he is wary that the world will be hanging on his words - but his opinion about whether man should go back to the moon is at odds with that of his former crewmates .
But , as the ucla study 's authors also observe , the issue isn 't just the infrequency of nonwhite actors earning oscar nominations and wins . It 's also the limited types of roles for which nonwhite actors do get nominated for oscars .
