The underlying risk may lead to some serious conditions such as cramps, sprain, arthritis or even fracture.

潜在的风险可能会导致一些严重的疾病，如抽筋，扭伤，关节炎，甚至断裂。

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However, even igneous and metamorphic rocks may act as groundwater reservoirs if extensive fracturing occurs in such rocks and if the fracture system is interconnected.

然而，如果火成岩和变质岩中发生大规模的断裂，并且断裂系统相互连通，那么它们也可以作为地下水储集层。

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On a battlefield, even their invention would not be of much use without a way to check the fracture and to decide where to make the injection.

在战场上，如果没有检查骨折并确定注射点的途径，即使采用他们的发明也无济于事。

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In addition, many married couples worry that if their undercover spending became known, it would hurt or even fracture their marriages.

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How good to fracture that habit, even if for a spell.

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The MRC researchers said increased fracture rates could not be blamed on concentrations of fluoride at levels found in water supplies, even when additional fluoride was added.

BBC: Fluoride 'does not cause fractures'