learn to do 和learn doing哪个对

learn to do 和learn doing哪个对 learn doing / to do 请问learn to do 和learn doing 的区别 learn to do和learn doing有什么区别 7.learn to do 还是learn doing learn 用法learn doing sth 这种用法有没有?急用,learn to do sth 和learn do learn和study 加doing 还是to do 我想知道 learn to do sth.和learn doing sth 的用法和区别 有learn doing 等于learn to do sth 请问learn to do sth.是否等于learn doing sth. learn to do与learn doing的区别,并举例说明 learn to do sth,还是learn doing sth