单词	nonhighlighted
释义	nonhighlighted 🌏不高兴
随便看	concave-printing machine concave profile concave programing concave programming concave programmingproblem concave programming problem concave protecting disk concave quadratic programming concave quadratic programming problem concaver concave reflection grating concave reflector concave reflectorconcave mirror, optical concave refractor concave region concave regions concave reinforced bar concave relief concave resistor Concave rib elevation concave ridging body concave rim concave rim wheel concave ring concave roll