Pyritum

例句：

1. 1. The lead pipe in the kitchen has corroded over time.
   厨房里的铅管已经腐蚀了。
2. 2. He was found guilty of using lead paint in his house.
   他被判定使用铅漆的房屋有罪。
3. 3.Lead is a toxic element that can cause serious health problems.
   铅是一种有毒元素，可能导致严重的健康问题。