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1·Wanking into letterboxes isn't providing enough challenge. I really want a chance to prove myself.

黒别人的邮箱不够有挑战性，我想要一个证明自己的机会.

2·Presumably this was quickly followed by a wanking motion and a questioning of all the time actual archaeologists have ever spent doing actual legwork.

据推测随后很快有人也采用了这个方法，并对长期以来考古学家们花大量时间跑腿进行了质疑。