better get going

基本解释

I better get going.
最好我去买。
You had better get going or you will be late for school !
你最好快一点，不然上学要迟到了。
edu.sina.com.cn
Jeff : They kind of try to ignore it. Anyway, I'd better get going. Good luck sneaking back into the house!
杰夫：他们有点想要淡化此事。不管怎样，我该走了。祝你顺利溜回房子喔！

For example: "There is no research that says that if you fire the principal you're going to get better results.
So we found precisely one point on this best response picture, and there's a lot of points to find, and it's 20 past 12, so we better get going.
现在我们只找到了最佳对策曲线上的一点,我们还需要找到更多的点,现在12点20了,我们得快点了
耶鲁公开课 - 博弈论课程节选
So you're going to get more better and better. Listen a lot of English songs and try to sing with them.
所以，你会变得越来越好。听大量的英文歌曲，并学着唱。
英语学习就要这样 - SpeakingMax英语口语达人

That said, it is going to take years, and the sooner we get going the better.
FORBES: Biofuel From Algae: Different Prognoses