The consequences of interacting with the array of sharp spines on a sea urchin or porcupine are pretty obvious to any creature passing by.

与海胆或豪猪身上的尖刺相互作用的结果对任何经过的生物来说都是相当明显的。

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It's trickier than ever to look sharp without relying on obvious symbols of wealth.

现在要做到引人注目比以往任何时候都要难，因为不能依靠明显的财富标志。

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The most obvious reason for the sharp drop was the growing evidence of the harmful health effects of smoking.

越来越多的证据表明吸烟有害健康，这是使得吸烟率大幅降低最显著原因。

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For the past month it has been obvious that Sharp, its stock now at around 200 yen, could be about to go under for the third and final time.

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Although the drop in the unemployment rate was surprisingly sharp, there is no obvious reason for it to reverse.

ECONOMIST: The economy: A little help from the invisible hand | The

But, as has become painfully obvious, the differences in perspective have become so sharp and deep that we are tearing ourselves apart.

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