快走比慢跑能消耗更多的热量。Brisk walking burns up more calories than slow jogging.我得快走，要不我该迟到了。I'd better scoot or I'll be late.快走! 要不我们到车站就迟了.Hurry up! Or we'll be late getting to the station....

“快走”的英语可以翻译为：cut it ...