hydrangin

例句：

1. 1.The mercury levels in the water were too high for human consumption.
   水中的汞含量对人类来说是过高的。
2. 2. Mercury is a highly toxic substance that can cause serious health problems.
   汞是一种高度有毒的物质，可能会导致严重的健康问题。
3. 3.The mercury in the fish was so high that it was banned from sale in many countries.
   鱼中的汞含量非常高，因此在许多国家被禁止销售。