You're chasing down another tip.你在追踪另一条线索吗
chase down:找出
We are trying to chase down all possible clues.
我们正在设法寻找一切可能的线索。
Police in Kansas City chased down a bad guy.
堪萨斯警方追捕了一个坏家伙。
I picked her up after work today.下班后我接她回来的
pick up:接人
The driver stopped to pick up a hitchhiker.
司机停下来让一个搭车人上了车。
He stopped the car to pick up the boy.
他停下车来搭一个男孩。
常用短语:
pick up with sb.结识某人
pick up on 与 ... 熟悉起来