belayer

Belayer: ( n . ) the person keeping the climber safe controlling the rope.

确保者, 打保护的人,确保攀登者安全的人.

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The belayer will then slowly lower the climber as he'walks'off the cliff backwards.

然后保护者慢慢把攀岩者放下,这时攀岩者就像是走下岩壁一样.

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