地面凹凸，走路小心。
The ground is uneven, walk carefully.
凹凸
concave or convex; bumps and holes; uneven (surface)
Watch it being written
Every character draws itself, stroke by stroke. Then grab the brush: trace it yourself and hear the word when you finish.
凹
凸
Nice writing!
Build with these blocks
Chinese words snap together like bricks. Every word below shares a character with this one, so you are already halfway to knowing it.
See it in sentences
他摸了摸凹凸的墙面。
He touched the uneven wall.