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5 Cards in this Set

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  • Back
  • 3rd side (hint)

Persistent

Kiên gan, bền bỉ

Per

Communal

Chung, cộng đồng

Deciare

Công bố

Demonstration

Sự thuyết minh, buổi biểu tình

Combustion

Đốt cháy

Air pollution can be caused by the combustion of fossil fuels such as coal