it's not /it's no两句话It's no fun to find oneself at the end fo the rope.It's not easy to educate teenagers.no和not怎么个用法啊?

问题描述:

it's not /it's no
两句话
It's no fun to find oneself at the end fo the rope.
It's not easy to educate teenagers.
no和not怎么个用法啊?

no后加名词not后面加形容词