他凝视着深不见底的峡谷。
He gazes into the deep ___canyon.
科罗拉多大峡谷是世界上最壮观的峡谷之一。
The Grand ___Canyon is one of the most spectacular ___canyons in the world.
峡谷的景色令人叹为观止。
The view of the ___canyon is breathtaking.
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