像米特拉达梯那样，经过长期接触，他对这种毒药完全免疫。

Like a ___Mithridates, he became completely immune to this poison through long-term exposure.

探险家服用了一种解毒剂来预防丛林中的毒素。

The explorer took a ___mithridate to protect against toxins in the jungle.