After about five years of climbing, I found myself in Yosemite Valley on a big wall.
经过大约五年的攀登训练，我发现自己能爬到约塞米蒂山谷的一堵高墙上。
3
There aren't many jobs in science for them, so they go to Wall Street and Silicon Valley to apply their analytical skills to more practical—and rewarding—efforts.