南非的政治变革进程已经到了不可逆转的阶段。
The process of political change in South Africa has reached the stage where it is irreversible.
她陷入医生们所说的一种不可逆转的植物人状态已达5年之久。
She had been in what doctors described as an irreversible vegetative state for five years.
剑桥科学家彼得·沃德姆斯自1971年以来一直在测量和监测北极，他说这种减少是不可逆转的。
Cambridge scientist Peter Wadhams, who's been measuring and monitoring the Arctic since 1971, says the decline is irreversible.
他们推断，虽然一些进化上的变化涉及基因的丢失，因此是不可逆转的，但其他的变化可能是基因被关闭的结果。
They reasoned that while some evolutionary changes involve the loss of genes and are therefore irreversible, others may be the result of genes being switched off.
1890年，他提出进化是不可逆转的：“一个有机体无法回到其祖先先前到达的阶段，即使是部分逆转，也不可能。”
In 1890 he proposed that evolution was irreversible: that 'an organism is unable to return, even partially, to a previous stage already realised in the ranks of its ancestors'.
我们迫切需要采取行动以恢复适当的价格激励政策，特别是通过纠正碳定价，以降低气候变化产生不可逆转和潜在破坏性影响的风险。
Action to restore appropriate price incentives, notably through corrective carbon pricing, is urgently needed to lower the risk of irreversible and potentially devastating effects of climate change.
手术不可逆转，无法使她重获生育能力。
从极地盖帽到赤道森林，这是不可逆转的世界，这就是我们拥有的所有自然。
It is this irreversibly modified world, from the polar caps to the equatorial forests, that is all the nature we have.
它们对资源的大量开采可能耗尽或不可逆转地破坏森林、土壤、水、空气和气候。
Their surging exploitation of resources threatens to exhaust or unalterably spoil forests, soils, water, air and climate.
他们对资源的不断开发可能会耗尽或不可逆转地破坏森林、土壤、水、空气和气候。
Their increasing exploitation of resources threatens to exhaust or unalterably spoils forests, soils, water, air and climate.
和解的潮流不可逆转。
这种疾病是不可逆转的、递进的。
首先，中美合作的历史趋势不可逆转。
First, the historical trend of China-US cooperation is irreversible.
而且有的损失是不可逆转的。
而且在一些地方还有不可逆转的进展。
军事潮流也看似不可逆转。
这是一个不可逆转的形势。
很多变化是不可逆转的。
进化是不可逆转的——至少在分子水平上是如此。
现在的变化则不可逆转。
两岁以后，营养不良造成的副作用将是不可逆转的了。
After age two, the negative effects of undernutrition are largely irreversible.
尽量避免作出不可逆转或者难于逆转的决定。
这是不可逆转的趋势。
这一疾病还可造成其它长期不可逆转的后果，例如不育症。
This disease may also have other long-term irreversible consequences, including infertility.
但他又表示，其他科学家说，再有十年，我们就会到达不可逆转点。
But he said other scientists say there is only a decade left before we reach the irreversible point.
气候变化将是不可逆转的的观点会影响我们应该如何应对气候变化。
The idea that changes will be irreversible has consequences for how we should deal with climate change.
曾经看似不可逆转的趋势突然来了个一百八十度的大转弯。
It is an abrupt reversal of a once seemingly inexorable trend.
曾经看似不可逆转的趋势突然来了个一百八十度的大转弯。
It is an abrupt reversal of a once seemingly inexorable trend.
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