凹面: concave area

suit, be suited for, lend itself to

to gather / to collect / to assemble

agate / onyx

concave area

a light, beam, illumination / a gleam, glow, ray / a glimmer, shine, sparkle / a luster/lustre, polish, sheen / glory, influence, power / a glimmer, gleam / positive aspect

to put together, to gather, to collect

(physics) concave mirror

An informal greeting similar to hey. See also よう. / An informal interjection similar to oh or oops. / An informal affirmative response.

追う: to chase / 負う: to incur or bear / 生う: to grow or spring up