illegal element name

例句：

1. 1. The company's policy on illegal elements is strictly enforced.
   该公司对非法元素的政策执行非常严格。
2. 2. The government has identified several illegal elements that need to be removed from the market.
   政府已经确定了需要从市场上移除的几个非法元素。
3. 3. The investigation found that the illegal element was intentionally introduced into the product.
   调查发现，这个非法元素是故意被引入产品的。