A: Do you want to come in for some tea?

　　A: 你要不要進來喝個茶呢?

　　B: No. I‘m running late. I really need to hit the road.

　　B: 不了。我快遲到了, 得上路了。

　　”running late” 是快遲到了的意思。

　　”Hit the road” 的 “hit” 有「去」的意思。好比某人每周去健身房三次, 你就可以說 “He hits the gym three times a week.”。

　　”I really need to hit the road.” 還可以用說成”I really need to get going.”。

　　come on to 的意思是“對某人輕薄，吃某人豆腐”

　　例句：

　　Tracy slapped Joe after he came on to her.

　　Tracy在Joe對她輕薄之后打了Joe一巴掌。