there are times when I am creay about learning English为什么要用when

there are times when I am creay about learning English为什么要用when
there are times when I am creay about learning English为什么要用when

there are times when I am creay about learning English为什么要用when
因为times是时期的意思,这个名词是时间上的意义,所以其后的定语从句用when去引导