作为担保人，他有责任履行合同。

Zuòwéi dānbǎo rén, tā yǒu zérèn lǚxíng hétóng.

As a guarantor, he is responsible for fulfilling the contract.

公司不能为你的个人债务提供任何担保。

Gōngsī bùnéng wèi nǐde gèrén zhàiwù tígōng rènhé dānbǎo.

The company cannot provide any guarantee for your personal debts.

这笔贷款需要有人做担保，你可以找一位亲戚帮忙吗？

Zhè bǐ dàikuǎn xūyào yǒu rén zuò dānbǎo, nǐ kěyǐ zhǎo yí wèi qīnqi bāngmáng ma?

This loan needs someone to act as a guarantor; can you ask a relative to help?