the second largest city in the US state of California. It is on San Diego Bay on the Pacific coast near the Mexican border, and has a large US Navy base. Tourists are attracted to its beaches and historical buildings. The city is also known for its electronics and aerospace industries. 圣迭戈（美国加利福尼亚州第二大城市，位于太平洋沿岸圣迭戈湾畔，靠近墨西哥边境）