floods and droughts的用法和樣例：
例句
- The flood and drought each year brought incalculable damage to farmers.
每年的水旱災害都會給農民帶來不可估量的損失。 - The constant floods and droughts in the Yangtze and Huaihe river area during the Ming and Qing dynasties had resulted from the combined action of many elements.
明清時期江淮地區水旱災害的頻繁發生是多種複雜因素共同作用的結果。
