The increase of pollutants in the environment follows an upward sloping curve.

环境污染的增加是按照倾斜上升的曲线变化的。

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Assume that in an unregulated market (that is; in a market with no licence requirements) the supply curve for taxi rides wouldbe an upward sloping straight line starting at the origin.

假设在一个不加管制的市场（换句话说，不需要执照），出租车服务的供给曲线会变成一个从原点出发的斜率为正的直线。

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Assume that in an unregulated market (that is; in a market with no licence requirements) the supply curve for taxi rides wouldbe an upward sloping straight line starting at the origin.

假设在一个不加管制的市场（换句话说，不需要执照），出租车服务的供给曲线会变成一个从原点出发的斜率为正的直线。

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