词汇	Latvio
释义	Latvio 拉特维奥¹⁰⁰
随便看	concave preset lens 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