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雅思口语真实考题：飞机对于环境的影响有什么？
Episode 324
Published 6 years, 2 months ago
Description
Repercussion
Airborne
Exert
Air pollution
Fossil fuels
Sulfide
Combustion
High altitude
Emit into the stratosphere
Ozone depletion
Noise pollution
Disturb
Issue curfew