葡萄牙经济容易受到攻击，不仅仅是因为葡萄牙是希腊或爱尔兰的一种并图，而且因为葡萄牙也有着这两个经济体的部分病状。

Portugal is vulnerable not because it is an identikit version of either Greece or Ireland, but because it shares some of the symptoms of both those afflicted economies.

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这个难题是：如何找到有利可图的利基市场并加以保护。

The difficult question is how to find that profitable niche and protect it.

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然而，另一些人则采纳了这样一种理念，即最好是在仍然有利可图之时利用水，并集中用在棉花等高价值作物上。

Others, however, have adopted the philosophy that it is best to use the water while it is still economically profitable to do so and to concentrate on high-value crops such as cotton.

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So I put the electron configurations and actually drew it on an energy diagram here, so we can actually think about why this might be happening.

所以我写出了它们的电子排布,并画成了能级图的形式，这样我们就可以好好想一想,这个问题发生的原因。

麻省理工公开课 - 化学原理课程节选

The budget constraint is a straight line through this point with a slope of .

这个预算限制在这幅图上是一条,是一条经过该点并以为斜率的直线

耶鲁公开课 - 金融市场课程节选

One way to draw sort of a schematic diagram of the operation of the human body where it shows separated organ systems and tries to show them in context.

用这种图示的方法,示意人类身体的运作方法,图中单独表示出器官系统,并试图展示它们之间的联系

耶鲁公开课 - 生物医学工程探索课程节选