think/think of/think about在意思和用法上有什么区别,可以造句说明吗,

thinkvt.1.想;思索[+wh-]Think how much you can earn if you open a restaurant in such a good location.想一想,要是你在这样的黄金地段开一家餐馆,你会赚多少钱啊.2.认为,以为[O8][O9][+(that)][O2]We thought it...