It used a curved mirror to make faraway objects seem larger.

VOA: special.2011.06.01

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

欧文·费雪还画了一条曲线,代表了社会的生产可能性边界PPF,这是一条向下的曲线

耶鲁公开课 - 金融市场课程节选

The highest point of the softly curved hill measures about three meters tall, while the lowest point is only a few centimeters thick.

VOA: special.2009.05.06

Her eyes showed traces of tears, but her lips were bravely curved in a smile.

VOA: special.2010.05.15

"Well,one of the things that's interesting about these flexible sheets is that they can be curved, so you could imagine putting them in unconventional forms, like on the surface of a vehicle or something like that, where you don't have a flat surface."

VOA: standard.2010.02.19