To get there, they have to cross the Sonoran Desert.

要想到达那里，它们必须穿越索诺兰沙漠。

In the northeastern Sonoran Desert, south of the Grand Canyon, lies Arizona's state capital Phoenix.

在索诺兰沙漠东北边，在大峡谷的南部坐落着美国亚利桑那州首府——凤凰城。