[C]表示可数名词,
[U]表示不可数名词,
[C,U]表示此名词既可作可数名词,也可作不可数名词。
解释:
C即countable
|ˈkaʊntəbl|
(grammar 语法) a noun that is countable can be used in the plural or with a or an , for example table , cat and idea
(指名词)可数的
U即uncountable
|ʌnˈkaʊntəbl|
(grammar 语法) a noun that is uncountable cannot be made plural or used with a or an , for example water , bread and information
(名词)不可数的