The author acknowledges that after nine years of large-scale U.S.military involvement in the Middle East, and with the nation's economic difficulties bearing down on them, many Americans feel the temptation to pull the U.S.strong horse out of the region.

VOA: standard.2010.03.18

Of course, with large-scale industrialization, which begins in the middle of the eighteenth century, you'll see this dramatic shift up to the north.

当然,随着大规模的工业化,在十八世纪中期的兴起,你会发现北方的戏剧性转变

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