So how can their share rise?

如何才能提高家庭收入的比例？

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The sudden rise in share prices has confounded economists.

股价的突然上涨使经济学家大惑不解。

《牛津词典》

While cohabitation has been on the rise, the overall share of young adults either married or living with an unmarried partner has substantially fallen since 1990.

尽管同居现象一直呈上升趋势，但自1990年以来，已婚或与未婚伴侣同居的年轻人的比例总体大幅下降。

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Second-place Facebook saw its market share rise to 13.6% from 7.3% the prior year, eMarketer said.

WSJ: Technology News: Yahoo Decides to Friend Facebook

Radio 4 Extra and the Asian Network also saw their audience share rise.

BBC: Record ratings for digital radio stations

Revenue could grow by 5% to 7%, while earnings per share rise at a double-digit rate, Stifel Nicolaus estimates.

FORBES: Kraft Disappoints But Stock Looks All The Sweeter After Plunge