The winding, mountainous road once served as a Native American trade route.

这段路盘山蜿蜒、风沙大，以前是美国印第安人的贸易通道。

The Cajon Pass connects Los Angeles' eastern suburbs and the Mojave Desert. The winding, mountainous road once served as a Native American trade route.

卡戎山口连接洛杉矶东郊和莫哈韦沙漠，这条蜿蜒多山的公路曾是美洲土著人的贸易路线。