镉

例句：

1. 1.The plant was found to contain high levels of cadmium.
   该植物被发现含有高浓度的镉。
2. 2. Cadmium is a toxic element that can cause serious health problems.
   镉是一种有毒元素，可能导致严重的健康问题。
3. 3. The mining of cadmium has been banned in many countries due to its harmful effects on the environment.
   由于其对环境有害的影响，许多国家已经禁止开采镉。