think hard和think over的区别?

think hard和think over的区别 think of,think over,think out,think hard的区别? think over,think about和think of的区别 "think about"、"think hard"、"think over"的不同 think over和think about区别 think about 和 think over 和 think of 区别 请教:think over,think about ,think of的用法和具体区别 think of think about与think over的区别 think of,think out,think about,think up,think over的区别 think over与think about和reflect on的区别是什么? think about 和think over的区别?例如：What do ____your school work? think over,think about,think of,think的区别是什么?何时用他们?