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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For a leaf, squeeze out the icing to form the bottom edge, then relax the pressure and pull the tip away to make a rippling leaf.

要画一个树叶，挤出糖霜从而形成底部边缘，然后放松，撤掉前套，荡漾的树叶就形成了。

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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

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

It's my cue to be careful -- to steer clear of red wine and sugar, two sure triggers when I'm in that sensitive state, and to get enough rest since lack of sleep can tip me over the edge, too.

CNN: Stop that splitting headache