And with that fateful decision began a four-year commitment, tossing back and forth between fear and courage to undertake a 12-day expedition.

伴随着这个决定性的决定， 开始了为期四年的承诺，在恐惧和勇气之间来回折腾， 以进行为期 12 天的探险。

" I don't think I shall send it anywhere, " he answered, tossing his head back in that odd way that used to make his friends laugh at him at Oxford.

“我不认为我会把它寄到任何地方， ”他回答说，以一种曾经让他的朋友在牛津嘲笑他的奇怪方式向后一甩头。