雅思真題短句:競(jìng)爭(zhēng)力不足

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★英語(yǔ)聽力頻道為大家整理的雅思真題短句:競(jìng)爭(zhēng)力不足。更多閱讀請(qǐng)查看本站英語(yǔ)聽力頻道。
    But they are rarely competitive with fossil fuels unless subsidized, and growing them does no less environmental harm than other crops.