try to study hard 和 try studying hard 有什么区别?

try to study hard 和 try studying hard 有什么区别? ask us to study hard 和 ask us studying hard 的区别 The boy try to study hard at english last term.（ He must_(try)his best to study hard at English try 和try out有什么区别 Try hard to make myself forget you.什么意思 I will study hard to try to better than you because i want t I try so hard not to notice. try hard at意思 try hard forget是什么意思. Try hard 意思 try hard anytime是什么意思