start to do sth 和 start doing sth 有什么区别.
參考答案:胡扯!有区别!
谈及一项长期活动或开始一种习惯时,使用doing.
How old were you when you first started playing the piano?
如果专指某一次活动,一般用to do.
如 I started to do my homework at 23:30 yesterday because I kept playing computer games for a long time.