Natural polymers, well ... I think that's what's most important, because these polymers have been tried and tested in our ecosystem for the last billion years, in everything from mushrooms to crustaceans.
天然聚合物，我认为这是最最重要的， 因为这些聚合物已经在过去的10亿年里， 在我们的生态系统中经历过考验， 从蘑菇到甲壳类的任何生物。