3 sentences

1. 圣地亚哥是智利的首都。

   Shèng​dì​yà​gē shì Zhì​lì de shǒu​dū.

   Santiago is the capital of Chile.

   Source: Dong Chinese Dictionary

2. 圣地亚哥依山傍海，是一座美丽的港口城市。

   Shèng​dì​yà​gē yī shān bàng​hǎi, shì yī zuò měi​lì de gǎng​kǒu chéng​shì.

   Nestled between the mountains and the sea, San Diego is a beautiful port city.

   Source: Dong Chinese Dictionary

3. 你母亲住在加州的圣地亚哥。

   nǐ mǔ​qīn zhù zài Jiā​zhōu de Shèng​dì​yá​gē.

   Your mother lives in San Diego, California.

   Source: OpenSubtitles