First explored by the Spanish in 539, the area was acquired by the United States in 848 through the Treaty of Guadalupe Hidalgo.是什么意思_First explored by the Spanish in 539, the area was acquired by the United States in 848 through the Treaty of Guadalupe Hidalgo.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句