Researchers found having a 2-year age gap, meeting through friends, marrying after 3 and a half years of courtship, and sharing 2 hobbies could also help ensure a lasting liaison.

调查人员发现，年龄差距为两岁，通过朋友相识，婚前交往3年半，并且有2个共同爱好，都有助于维系长久婚姻。

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February's relatively skinny deficit — which was less than half the size of the gap in October 2008 — was driven partly by falling oil imports and an unexpected surge in exports.

二月份的贸易赤字相对减少，还不到2008年10月贸易赤字的一半，很大程度上是由于石油进口量下降和出口的意外猛增。

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Overall, this “formula effect” contributes half a percentage point to the gap between the two.

总之，这个“公式效应”导致了二者之间产生0.5%的差距。

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The French side's momentum finally told, the Blues defence stretched by repeated batterings to allow Skrela to send wing Arias into a half gap for a converted try.

BBC: Blues 31-21 Stade Francais

With seven minutes left David Blair sniffed a half-gap and shot through only to be dragged down just short of the Blues' line.

BBC: Blues 18-17 Edinburgh

Again, if France had been as flexible as America, its unemployment rate would have been 1.7 percentage points lower (equivalent to roughly half the gap that then existed).

ECONOMIST: Working man’s burden | The