摘要：
41.Canned food(原音频)42. Earth and Mars(近似原文)43. Biology application(原音频)44.Recycling water(原音频)45.Human rights in UK(原音频)46. Credit card47.Crops(原音频)48 阅读全文
lotus贵有恒何必三更眠五更起 最无益只怕一日曝十日寒 |
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摘要：
41.Canned food(原音频)42. Earth and Mars(近似原文)43. Biology application(原音频)44.Recycling water(原音频)45.Human rights in UK(原音频)46. Credit card47.Crops(原音频)48 阅读全文
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