These are biological concepts which presuppose an understanding of internal biological processes like respiration, blood flow and digestion.
生和死是生理上的概念，了解它们要以了解像呼吸、血循环和消化等生理过程为前提。
Proper combination of like foods or compatible foods will aid in proper digestion and optimal health.
相似食物和兼容食物的适当搭配将有助于完全消化，达到最佳的健康状态。
She cited examples such as kefir, a sour, yogurt-like drink that is popular in Russia and that some say AIDS in digestion.
她举了kefir的例子，这是俄国比较流行的一种酸酸的像酸奶的饮料，有人认为可以帮助消化。
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