氯乙烯，四氯乙烯，二氯乙烯和苯都是高剂量可能引起健康问题的化学物质。
Vinyl Chloride, tetrachloroethylene, dichloroethene, and benzene are all chemicals that could cause health problems in high doses.
氯乙烯，四氯乙烯，二氯乙烯和苯都是高剂量可能引起健康问题的化学物质。
Vinyl Chloride, tetrachloroethylene, dichloroethene, and benzene are all chemicals that could cause health problems in high doses.
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