然后你可以试着做个直线拟合，这个看上去就不像是呈直线趋势的。

And if you try to do a best-line fit, well, it doesn't seem to follow a linear trend.

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然而，这个庞大的预测数字说明，使用抛物线做出预测比使用直线趋势做出预测必须更加慎重。

This extraordinarily large forecast suggests, however, that we must be more careful in forecasting with a parabolic curve than we are when using a linear trend .

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在过去两个月,购物商场的销售额停止直线下降趋势，与去年同期相比开始上升。

Sales at malls rose in the past two months on a year-on-year basis, ending a string of declines.

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