What’s more, there is probably not enough conventional oil left to tip the climate over the edge.

更甚者，我们可能已经没有足够的传统石油将气候从危险边缘挽回了。

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However, if somebody already has cardiovascular disease, then it might just tip them over the edge and trigger a heart attack.

但如果有的人本来就有心血管疾病，那这就可能把他们逼到临界点，导致心脏病发作。

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Improved relations with employees could not save the company from entering bankruptcy in September 2005, however, when surging fuel costs helped to tip Delta over the edge.

燃油成本飙升让德尔塔在破产边缘垂死挣扎，劳资关系虽然得到了改善，公司并未因此获救，反而于2005年9月选择破产。

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Banque de France Governor Christian Noyer said at the weekend that predictions that fiscal tightening would cause European growth to tip over the edge have been proved to be ill-judged and outweighed by the rise of private sector confidence lifting the economy back to a healthy growth rate.

FORBES: No D-S-K In Brussels But Greeks Come Calling Anyway

This was enough to tip the economy over the edge.

ECONOMIST: Millennium issue: German hyperinflation

Caring is about a whole series of cogs working together, but if just one comes unstuck that can tip you over the edge, she says.

BBC: 'Always on edge' - a carer's life