convex

/ˈkɑn.vɛks/ 形容词 C1

中文：凸

Curved or bowed outward like the outside of a bowl, circle, or sphere.
having an epigraph that is a convex set.
having no internal angles greater than 180 degrees.
arranged such that for any two points in the set, a straight line between the two points is contained within the set.

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Then with an expression of interest he laid down his cigarette, and carrying the cane to the window, he looked over it again with a convex lens.

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