hydration

例句：

1. 1. The plant requires a lot of water for its survival.
   这种植物需要大量的水来维持生存。
2. 2. The body needs to maintain a certain level of hydration to function properly.
   身体需要保持一定的水分水平来正常运作。
3. 3. The athletes were advised to drink more water during the competition to prevent dehydration.
   运动员被建议在比赛中多喝水以防止脱水。