| 例句 |
concaveadjective curved inwarda concave lens dented, depressed, dished, hollow, indented, recessed, sunken alveolar, cavernous, crescentic, cuplike, cupped, cuppy, recurveddimpled, pockmarkedcompressed, condensed, contracted, diminished, reduced bulging, cambered, convex, protruding, protrusive, protuberant ballooning, bloated, blown up, bulbous, distended, enlarged, expanded, extended, inflated, jutting, projecting, puffed, puffy, risen, swollendomed, global, globular, round, rounded, spherical in the 15th century |