This idea isn't new.
这主意不新鲜。
Life isn't like in the movies, you know.
你知道，生活不像在电影里那样。
In essence, your situation isn't so different from mine.
从本质上讲，你我的.情况并非相差很远。
This house isn't big enough for us.
这房子对我们来说不够大。
Isn't it time the government came clean about their plans for education?
这难道不是政府彻底说明教育计划的时候了吗？