水底 (shuǐ dǐ) — bottom of a body of water (river, lake, sea); underwater bottom

定義

例文

• 潜水员在水底发现了沉船。
  Qián shuǐ yuán zài shuǐ dǐ fā xiàn le chén chuán.
  The diver discovered a sunken ship at the bottom of the water.
• 这条河的水底有很多石头。
  Zhè tiáo hé de shuǐ dǐ yǒu hěn duō shí tou.
  The bottom of this river has many rocks.
• 鱼喜欢躲在水底的石头下面。
  Yú xǐ huan duǒ zài shuǐ dǐ de shí tou xià miàn.
  Fish like to hide under the rocks at the bottom of the water.