if you stick ()practising it,用at还是to.为什么

问题描述:

if you stick ()practising it,用at还是to.为什么

to 固定短语
stick to doing sth 坚持做某事
stick at sth
这里是practising 动词ing形式
所以选to
例:
She often sticks at her work more than ten hours a day.
她常常一天一工作就是十小时以上.