| 1. | Water is essential for maintaining many of the body ' s functions and activities , including food assimilation and digestion , excretion , cellular reaction and body temperature regulation 无论是食物的消化和吸收、体内废物的清除、细胞内的化学反应还是体温的调节,人体生理的各种活动和运作,都需要水的帮助才能顺利进行。 |