y一般是交通工具的时候用,如by air 坐飞机 by bus 坐汽车,或是用于被动语态 My homework is done by me.
而In 后面一般是跟语言,如 in Enlish ,in chinese .
with 一般后跟具体的工具,如 catch the bag with you hands .
on 用得很少,主要是通讯,如on the telephone,on the internet.
y一般是交通工具的时候用,如by air 坐飞机 by bus 坐汽车,或是用于被动语态 My homework is done by me.
而In 后面一般是跟语言,如 in Enlish ,in chinese .
with 一般后跟具体的工具,如 catch the bag with you hands .
on 用得很少,主要是通讯,如on the telephone,on the internet.