8 sentences

1. 海底有很多奇特的生物。

   hǎi​dǐ yǒu hěn​duō qí​tè de shēng​wù.

   There are many peculiar creatures on the seabed.

   Source: Dong Chinese Dictionary

2. *谁住在海底的菠萝屋里？

   * shéi zhù zài hǎi​dǐ de bō​luó wū lǐ?

   Who lives in a pineapple under the sea?

   Source: OpenSubtitles

3. 鳎目鱼生活在浅海的海底。

   tǎ mù yú shēng​huó zài qiǎn​hǎi de hǎi​dǐ.

   Sole lives on the seabed of shallow waters.

   Source: Dong Chinese Dictionary

4. 海底地震引发了巨大的海啸。

   hǎi​dǐ dì​zhèn yǐn​fā le jù​dà de hǎi​xiào.

   An undersea earthquake triggered a massive tsunami.

   Source: Dong Chinese Dictionary

5. 那艘潜水艇慢慢沉入了海底。

   nà sōu qián​shuǐ​tǐng màn​màn chén​rù le hǎi​dǐ.

   The submarine slowly sank to the bottom of the sea.

   Source: Dong Chinese Dictionary

6. 潜水员在海底发现了一艘古老的沉船。

   qián​shuǐ​yuán zài hǎi​dǐ fā​xiàn le yī sōu gǔ​lǎo de chén​chuán.

   Divers discovered an ancient shipwreck on the seabed.

   Source: Dong Chinese Dictionary

7. 传说东海龙王居住在海底的水晶宫中。

   chuán​shuō Dōng Hǎi Lóng​wáng jū​zhù zài hǎi​dǐ de Shuǐ​jīng​gōng zhōng.

   Legend has it that the Dragon King of the East Sea lives in a crystal palace at the bottom of the sea.

   Source: Dong Chinese Dictionary

8. 电信公司计划在海底铺设一条新的光缆。

   diàn​xìn gōng​sī jì​huà zài hǎi​dǐ pū​shè yī tiáo xīn de guāng​lǎn.

   The telecommunications company plans to lay a new fiber optic cable on the seabed.

   Source: Dong Chinese Dictionary