We typically call things like that "scribbles", not curves.

我们通常叫它“画符”，而不是曲线。

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To astronomers, flat means that the usual rules of geometry are observed - light travels in straight lines, not curves.

对于天文学家来说，平面的宇宙意味着几何学的一般原理将被遵守，光在直线中运行，而不是曲线。

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Now these segments are looking at slower growth curves—or shrinking markets in some cases—as consumers are not as eager to spend money on new gadgets.

现在，由于消费者不那么热衷于花钱购买新的小玩意，这些细分市场的增长曲线出现了放缓，在某些情况下甚至出现了市场萎缩。

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And many studies lately have shown that the greatest threat to young arms is not throwing curves but making too many pitches of any kind.

FORBES: Kid Pitching Studies Throw Youth Sports a Curveball

The circular saw is designed to cut wood in straight lines, not to navigate complex curves.

WSJ: 'Humanity' in Barclays Center's New Sculpture

The phenomenon of steep yield curves is not limited to Treasurys.

FORBES: Stretch That Yield