Okay, so the body has a way of metabolizing and making use of the food such that you can get energy or nutrients from it.
对的,身体可以代谢并利用食品,从中获取能量和营养
The digestive system, of course, is responsible for bringing in sort of fresh nutrients, fresh substrates for cellular metabolism, fresh quantities of amino acids, and nucleotides, and the things that we can't generate internally.
当然,还有消化系统,它主要负责将各种新鲜营养物摄入体内,为细胞代谢提供新的底物,如一批新的氨基酸,核苷酸,以及那些人体无法自行合成的东西
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