sniol

例句：

1. 1. The mercury levels in the water are dangerously high.
   水中的汞含量危险地高。
2. 2. Mercury is a toxic element that can cause serious health problems.
   汞是一种有毒元素，可能导致严重的健康问题。
3. 3.The mercury pollution in the river has been a major concern for environmentalists.
   河流中的汞污染一直是环保人士的重大问题。