传统的干系方法通常会使用一种叫做全氯乙烯的溶剂。
Traditional dry cleaning USES a solvent called perchloroethylene, which is toxic enough to be treated as hazardous waste.
全氯乙烯可能会造出顾客会出现一些过敏的症状，而经常接触这种化学品的工人则会引起更严重的健康问题。
It can cause allergic reactions among customers, and far more serious health problems for workers who are constantly exposed to it.
全氯乙烯可能会造出顾客会出现一些过敏的症状，而经常接触这种化学品的工人则会引起更严重的健康问题。
It can cause allergic reactions among customers, and far more serious health problems for workers who are constantly exposed to it.
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