W: Excuse me. I've been waiting here for 15 mins. Do you know how often does No. 3 run?

M: Oh, it runs every 20 mins. You must have missed it, when you came here. It should be here any minute now.

W: It seems that you have got here at a good time. Do you have a bus schedule?

M: Yes, I do. You can go to the Transport Department to get yourself a bus schedule and a bus route map.

W: I see, thank you.

W：打扰一下，我在这里已经等了15分钟了，你知道3路车多久来一趟吗？

M：哦，20分钟一趟。你来的时候肯定错过了一趟，它现在随时都可能来。

W：你好像来的正好，你有公交车时刻表吗？

M：嗯，我有。你可以去交通运输部门给自己也拿一份时刻表，还有路线图。

W：知道了，谢谢。