Mergamma

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.The mercury pollution has affected the health of many people.
   汞污染影响了许多人的健康。
3. 3. The mercury vapor lamps were banned in the 1970s.
   在20世纪70年代，水银灯被禁止使用。