She checked the index and turned over to a page about early Chinese immigrants in California.

她查了一下索引，之后翻到关于早期加州中国移民的那一页。

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The dollar index is already down over 10% since June.

从六月份开始，美元指数已经下跌超过10%。

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Today, our Book Search index contains over 10 million books.

如今，我们的图书搜索索引中包含了超过了10万册的图书。

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Boomer moms under-index on sense of self and accomplishment compared to their children and over-index on social responsibility.

FORBES: Listen To The Moms: 3 Brand Marketing Insights For 2012

"We know if you play as a kid you over-index in your propensity to become a fan, " Brosnan said.

WSJ: As Baseball Season Beings, Kids Are Losing Interest in the National Pastime

Younger Internet users over-index on Tumblr, with the heaviest concentration falling between ages 18 and 24, according to ComScore.

FORBES: Do You Need A Tumblr?