It would have been unwise for all four to descend into the couloir, because they did not know where to fix the rope that would be needed on their return.
मराठीत दोन रु आहेत हेच अनेकांना माहीत नसते, किंवा असले तरी कोणता रु कधी वापरायचा हे माहीत नसते.