Small biological molecules are basic elements of large biological molecules, and also the important participants in the activities of life.
生物小分子是生物大分子的基本组成单元，也是生命活动的重要参与者。
The ultimate goal of the biological activity of large molecules are often metabolism of small chemical elements.
生物大分子活动的最终目标常常是化学小分子的代谢。
The ultimate goal of the biological activity of large molecules are often metabolism of small chemical elements.
生物大分子活动的最终目标常常是化学小分子的代谢。
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