中文 Sheets
My Favorites
No favorites yet
History
No history yet
Home / Word / 凹凸

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

āo tū
Word
New to Chinese?Start with pinyin·See the learning path·Browse all tools
Want to practice speaking with a real teacher? Find a 1-on-1 Chinese tutor on italki (affiliate)