- 凹: low-lying area; depression
- 处: place
- 凹痕: indenture; pitting; pit; dok ...
- 凹处: alcove; bowl; concave; concavity; dent; depression; dint; fold; niche; nick; pocket; recess; trough; well
- 凹痕: indenture; pitting; pit; doke; dent; dimple; cave 地毯上放过落地灯的地方有个凹痕。 there was a depression in the carpet where the lamp had stood
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