proficiency

基本解释n.(in)熟练,精通

网络释义

1)proficiency,n.(in)熟练,精通2)proficient,能手;熟练的;精通的3)perfection,完美，完备，精通，熟练4)perfect oneself in,完全掌握;熟练;精通5)have something at one's finger-tips; close at hand,熟知;精通6)degummed silk fabric,熟悉绸,精练绸缎

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单词索引：: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

短语索引：: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z