英语中什么叫动词原形有1题Don't be afraid .中be afraid为什么不用to afraid?

英语中什么叫动词原形有1题Don't be afraid .中be afraid为什么不用to afraid? 英语中be afraid of doing be afraid to do 有什么区别? don t be afraid don't be afraid 英语中be afraid of 的用法是什么,还有,它与be afraid to什么不同 Don't Be Afraid To Run 歌词 be afraid of和be afraid to有什么区别 be afraid of与be afraid to 有什么不同 DON'T BE AFRAID 歌词 Don't be afraid还是Don't afraid be afraid of 和be afraid to 有什么区别（除了前者跟动名词,后者跟原形外） 动名词和名词有什么区别啊 Don't be afraid of losing .Don't be afraid of l