从把太阳能转换为食物，到循环产生供呼吸的气体，全球的树木支撑了整个生物圈的基础。
From the converting solar energy into foods, to the regenarating gas for breath, trees around the Earth support all the foundation of the biosphere.
从把太阳能转换为食物，到循环产生供呼吸的气体，全球的树木支撑了整个生物圈的基础。
From the converting solar energy into foods, to the regenarating gas for breath, trees around the Earth support all the foundation of the biosphere.
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