Please keep [stick] to the point.; Please don't stray from the subject.
请不要离开本题。
《新英汉大辞典》
2
I did it in my way, but he thought a different explanation would fit better. My overweening conceit made me stick to my guns and argue the point with him at length.
但他认为另一种解释会更确切些,我过度的自矜使我坚持和他争辩到底。
3
We have reached the point where the service part of SaaS is most relevant, the point where the experience your customers have with your company will determine whether they stick or switch.