tolerant trials的用法和样例：
例句
- Sweden has one of the world's highest percentages of lactase tolerant people.
其中瑞典为乳糖耐受性比例最高的国家。 - Moreover, they can have serious side effects, and patients tend to become tolerant to them, requiring escalating doses to get any relief at all.
再者，它们都可能有严重的副作用，病人也经常对它们产生耐受性，必须使用更高剂量才能获得止痛疗效。
