3 sentences

1. 海水淹没了沿岸的大片农田。

   hǎi​shuǐ yān​mò le yán'àn de dà​piàn nóng​tián.

   Seawater flooded large areas of farmland along the coast.

   Source: Dong Chinese Dictionary

2. 豪华邮轮正在地中海巡游，带游客们观察沿岸迷人的自然风光。

   háo​huá yóu​lún zhèng​zài Dì​zhōng Hǎi xún​yóu, dài yóu​kè men guān​chá yán'àn mí​rén de zì​rán fēng​guāng.

   The luxury cruise ship is cruising the Mediterranean, taking tourists to see the charming natural scenery along the coast.

   Source: Dong Chinese Dictionary

3. 长江沿岸分布着许多港口城市。

   Cháng Jiāng yán'àn fēn​bù zhe xǔ​duō gǎng​kǒu chéng​shì.

   There are many port cities along the Yangtze River.

   Source: Dong Chinese Dictionary