focus on 与concentrate on的区别?

concentrate on 与focuse on 的区别 concentrate和focus的区别. concentrate on 和 concentrate to 的用法和区别? concentrate on的用法 concentrate on 和 foucus on 区别 concentrate on concentrate more on 与concentrate much on 都可以吗 focus on focus in有什么区别 concentrate on you的意思 concentrate on 和 concentrate to 有什么区别 be concentrate on.be peroccupied with .focus on.都一样吗. pay attention to 与concentrate on