long term toxicity test

例句：

1. 1. The company conducted a long-termtoxicity test on the new chemical.
   该公司对这种新化学物质进行了长期毒性测试。
2. 2.The study aims to evaluate the long-term toxicity of the pesticide.
   这项研究旨在评估这种农药的长期毒性。
3. 3.The government is concerned about the potential long-term effects of the chemical.
   政府担心这种化学物质可能带来的长期影响。