凭 (píng): to rely on, to base on; by means of

When you enter the train station, the staff will only let you board if you show your ID card.

In this interview he persuaded the boss with nothing but his gift of gab, without even bringing a résumé.

Based on experience, I judge that this rain will definitely stop before three in the afternoon.

What makes you think I did this? I wasn't at the company at all that day.

Thanks to everyone's hard work, this project was able to be finished in such a short time.