凹凸
āo tū
HSK 2.0 Level 6
Rare
Definitions
- 1. concave or convex
- 2. bumps and holes
- 3. uneven (surface)
- 4. rugged
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Word relationships
Antonyms
1 itemRelated words
3 itemsUsage notes
Collocations
“凹凸”常与“不平”搭配，如“凹凸不平”，表示表面不光滑、有起伏。
Formality
“凹凸”本身是中性词，但“凹凸不平”常用于书面语，口语中可能说“不平”或“坑坑洼洼”。