几百万年来，甘尼森河静静地流过孤独的黑峡谷。

For millions of years, the Gunnison River has been carving this canyon at work across eons of isolation.

youdao

几百万年来，甘尼森河静静地流过孤独的黑峡谷。

For millions of years, the Gunnison River has been carving this canyon at work across eons of isolation.

youdao