reflex angle优: excellent; fine; good; outst ...角: role; part; character反: reverse side优角: major angle; reflex angle反角: contra angle; contra-angel; contra-angle; dihedral下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:优角；反角，即可在微信中查询翻译
