英语翻译

问题描述:

英语翻译
Usage is "that aspect of performance which makes evident the extent to which the language user demonstates his knowledge of linguistic rules"

usage is "that aspect of performance
which makes the extent evident - 定语从句.修饰谁,您知道吧.
to which the language user demonstates his knowledge of linguistic rules 定于从句,修饰谁,您也知道吧.
to a certain extent ,所以,后面 to which,.看懂了吧.还用详细解释吗