tetraethyl lead

例句：

1. 1.The chemical was used as an antifreeze in automobiles during the 1920s.
   这种化学物质在20世纪20年代被用作汽车防冻剂。
2. 2. In some cases, tetraethyl lead can be toxic to humans and animals.
   在某些情况下，四乙基铅对人类和动物是有毒的。
3. 3. The use of tetraethyl lead 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，许多国家已经禁止使用四乙基铅。