windfall
n
1 fruit, esp an apple, that has been blown off a tree by the wind 风吹落的果实(尤指苹果).
2 (fig 比喻) unexpected piece of good fortune, esp a legacy 意外的好运; (尤指)意外获得的遗产.
It is true that during their explorations they often faced difficulties and dangers of the most perilous nature, equipped in a manner with would make a modern climber shudder at the thought,