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precipice; cliff
flat head
絶壁の上に建てられた城は難攻不落だ。
A castle built atop a precipice is impregnable.
絶壁から海を見下ろす眺めは壮大だ。
The view looking down at the sea from the cliff is magnificent.
登山家が絶壁に挑み頂上を目指した。
The mountaineer challenged the cliff and aimed for the summit.