embossed paper凸凹: convex-concave纸: paper压凹纸板: indented board凸凹的: convexo concave; convexoconcave凸凹镜: bulge; concave-convex len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:凸凹纸,即可在微信中查询翻译