这家干洗店不再使用三氯乙烯，因为它对健康有害。

The dry cleaner stopped using ___trichloroethylene due to its health hazards.

这种溶剂含有三氯乙烯，过去常被用作工业清洗剂。

This solvent contains ___trichloroethylene, which was commonly used as an industrial cleaner in the past.