stick to doing sth ， 坚持做某事 ， to在这里是介词 。例如 ， I think I'll just stick to doing it the old way.
stick基本含义
v.将…刺入(或插入)；刺；戳；插入；粘贴；粘住；(尤指迅速或随手) 放置;
【sticker,stick】n.枝条；枯枝；柴火棍儿；球棍；条状物；棍状物;
第三人称单数：sticks
复数：sticks
现在分词：sticking
过去式：stuck
过去分词：stuck
动词+介词to+动名词
1.admit to doing sth 承认做了某事
He admitted having stolen the money.他承认偷了钱 。
2.apply to doing sth 适用于做某事
These methods apply to learning English.这些方法适用于英语学习 。
3.object to doing sth 反对做某事
He objected to being treated like a child.他反对被当作小孩子看待 。
4.see to doing sth 负责做某事
5.stick to doing sth 坚持做某事
Reporters should stick to investigating the facts.采访人员应坚持调查事实 。
6.take to doing sth 喜欢上做某事 ， 逐渐习惯做某事
Soon he took to sleeping late.不久他就养成了睡懒觉的习惯 。
