A year later, Cassin completed his crowning achievement: the first ascent of the Walker Spur of the Grandes Jorasses on the Mont Blanc massif.They reached the summit in 82 hours.
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- 一年后,卡森完成他这一生登峰造极之作:首次登上白朗峰群中的大乔拉斯峰沃克肋稜,他们在82小时内攻顶成功。