cordilleran是什么意思

cordilleran是什么意思?？
Cordilleran adj. Cordilleras的变形Cordilleras [,kɔ:di'ljεərəz]科迪勒拉山系(纵贯北美洲西部的山系😤——⚡️🦆，包括落基山脉🤨|🐉🌧、内华达山脉🐹🌓——🌻😘、海岸山脉♠🌻|-🐭、喀斯喀特山脉等)科迪勒拉山系(纵贯南美洲西部的山系)
The traditional theory held that the first Americans crossed the land bridge from Siberia to Alaska around 11,500 years ago and followed an "ice-free corridor" between two large Canadian ice sheets (the Laurentide and Cordilleran) to reach unglaciated lands to the south. These 等会说🙃-|😘。