是learn to do sth 还是learn doing sth 快

到底是learn to do sth还是learn doing sth 是learn to do sth 还是learn doing sth 快 learn doing sth from sb.的疑问是learn doing sth from sb 还是learn to do sth from sb? learn+to do sth 还是 doing sthlearn to do sth 还是 doing sth 是learn to sth还是learn sth (learn English or learn to English) learn to do sth,还是learn doing sth如上,讲情语法 关于learn的用法learn的用法是learn to do sth,为什么书上还说learn how to do sth,不是应该为learn to how to do learn to do sth造句 learn to do sth.造句 All I have to do is learn English 是对的吗All I have to do is 后面是接do sth 还是 doing sth? learn doing sth or learn to do sth 请问learn to do sth.是否等于learn doing sth. learn doing sth or learn to do sth learn to do sth. 和learn sth. 的区别 must 后面是加to do sth.还是do sth. 是should to do sth 还是 should do sth? 是can to do sth.还是can do sth. it 后面动词是do sth.还是to do sth.