They must campaign to repair the ozone shield, halt the greenhouse effect, preserve soil and save the tropical rainforest.
他们为了修护臭氧层，遏止温室效应，保护土壤和拯救热带雨林，必须奔走游说。
They must campaign to repair the ozone shield, halt the greenhouse effect, preserve soils and save the tropical rainforest.
他们为了修护臭氧层，遏止温室效应，保护土壤和拯救热带雨林，必须奔走游说。
They must campaign to repair the ozone shield, halt the greenhouse effect, preserve soils and save the tropical rainforest.
他们为了修护臭氧层，遏止温室效应，保护土壤和拯救热带雨林，必须奔走游说。
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