欧文·费雪还画了一条曲线，一条社会的生产可能性边界，他让它向下弯曲。

Irving Fisher also drew on the curve, a production possibility frontier for society, which he made downward-curved.

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等产量线是表示两种生产要素的不同数量组合可以带来相等产量的一条曲线。

Isoquant curve is a line showing all the alternative combinations of two factors that can produce a given level of output.

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这是一条曲线，我有一个自由度。

That's a line. I have one degree of freedom.

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And we can just extrapolate in a straight line We before saw some examples where I had an algorithm to generate points, and we fit a curve to it, used the curve to predict future points and discovered it was nowhere close.

我们可以干脆用一条直线来描述它,我们之前看到在一些例子中,我用一个算法去生成一些点，然后用一条曲线对它进行拟合，然后用这条曲线来预测未来的点,最后却发现结果完全不对。

麻省理工公开课 - 计算机科学及编程导论课程节选

I constructed a series of home prices -that's the red line and the red line is -you can see how it's moved through history.

我绘制了一条房屋价格的时间序列曲线...,就是那条红色的线,你可以看到它的历史走势

耶鲁公开课 - 金融市场课程节选

The force may taper off, the force may not be given by a straight line, but for modest deformations, every spring will have a linear regime in which the force is linearly proportional to the stretching.

它产生的力可能会渐渐消失,力的曲线可能不是一条直线,而有轻微的弯曲,每个弹簧都有一个线性区间,在这一区间内,力和伸长量是线性关系

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