凹凸

āo tū

HSK 等级: HSK 2.0 · 6

释义

concave or convex; bumps and holes; uneven (surface); rugged

在应用里学习 → 按笔顺书写

汉字

凹āoconcave, hollow; depressed; pass, valley一凸tūto protrude, to bulge out; convex一