thallium methide

例句：

1. 1. This compound is a rare and toxic substance found in nature.
   这种化合物是自然界中一种稀有且有毒的物质。
2. 2.The researcher discovered a new method to extract thallium from its ores.
   研究人员发现了一种新的方法，可以从其矿石中提取铊。
3. 3. Due to its toxicity, thallium is classified as a hazardous waste by the Environmental Protection Agency.
   由于其毒性，铊被环境保护局归类为危险废物。