以前,大陆之间的鸿沟允许水自由流动;而现在地峡形成了一道屏障,把大西洋和太平洋分隔开来。
While previously the gap between the continents had allowed a free flow of water, now the isthmus presented a barrier that divided the Atlantic Ocean from the Pacific Ocean.
流动使水充满活力和自由(流水不腐)。
但是人们发现就餐时喝点水的确有好处,水可以使胃的消化液更加自由地流动,这有助于消化食物。
It makes the digestive juices flow more freely and helps to digest the food.
应用推荐