In 1973 sociologist Mark Granovetter showed how the loose acquaintances, or "weak ties", in our social network exert a disproportionate influence over our behaviour and choices.

1973年，社会学家马克·格兰诺维特指出，在我们的社交网络中，关系松散的熟人或“弱关系”对我们的行为和选择产生了不成比例的影响。

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The type of reactors used at the Fukushima plant — made by the General Electric Company, they are known as Mark 1 boiling-water reactors — have long been known to have weak containment systems.

福岛第一核电站使用的反应堆是由通用电气设计制造，称之为马克一号沸水反应堆。 该反应堆长期以来多认为安全壳系统薄弱。

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Stanford sociologist Mark Granovetter discovered that many people find jobs not through their nearest and dearest but from "weak" connections: acquaintances and friends of friends.

斯坦福社会学家Mark Granovetter发现许多人并不是通过他们最近和最亲的人找到工作，而是通过“微弱的”人际关系：泛泛之交和朋友的朋友。

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Jermaine Johnson was a lively presence on the right flank and forced a decent save from the excellent Julian Speroni, who also held a weak Mark Beevers header and a poor Luke Varney strike.

BBC: Sheff Wed 2-2 Crystal Palace

Weak traffic and off-mark products led to slower than expected sales in May, when wet, chilly weather may have provided too weak inspiration for consumers to start shopping for summer items, analysts at RBC Capital Markets say.

FORBES: May Sales Show Tighter Times Ahead For Retailers

Mark Loretta, the weak hitting second baseman, dug in at the batter's box.

NPR: Red Sox Game Locks in a Father's Day Memory