body water

例句：

1. 1.The body needs water to function properly.
   身体需要水来正常运作。
2. 2. During exercise, the body loses a lot of water.
   锻炼时，身体会失去很多水分。
3. 3.Water is essential for maintaining body temperature and hydration.
   水对于维持体温和水分平衡至关重要。