of 是主观评价,如It's kind of you to help me.
for是客观评价,It's difficult for you to swim across the riv to 介词,对...来说
It is/was + adj.+ for/of sb.to do...是一 结构,必须用 for 或者 ofer.
of 是主观评价,如It's kind of you to help me.
for是客观评价,It's difficult for you to swim across the riv to 介词,对...来说
It is/was + adj.+ for/of sb.to do...是一 结构,必须用 for 或者 ofer.