we wear school uniform at school。 uniform为什么不加s?

uniform指制服,是个可数名词,但有时却是不可数名词,例如in

uniform就是不可数的,‘他穿着校服’是He

is

in

school

uniform,‘他们穿着校服’同样是They

are

in

school

uniform。

而wear

uniform则可不可数都可以,你可说They

wear

uniforms,也可说They

wear

uniform。一般而言,uniform是可数的,例如:He

is

wearing

a

new

school

uniform,

which

sits

badly

on

him(他穿的新校服并不合身)。