She had run up a huge phone bill.

她已经欠下了一大笔电话费。

How had he managed to run up so many debts?

他怎么欠了这么多债？

She managed to run up a credit card debt of $60,000.

她竟然用信用卡透支了6万美元。

He had run up credit card debts of thousands of dollars.

他积欠了数千元的信用卡借款。

The shivers run up and down my back at the mere thought of it.

一想到它，我就浑身发抖。