pothole

中文： 坑洞、瓯穴

1. A shallow pit or other edged depression in a road's surface, especially when caused by erosion, weather or traffic.
2. A pit formed in the bed of a turbulent stream.
3. A vertical cave system, often found in limestone.
4. A pit resulting from unauthorized excavation by treasure-hunters or vandals.
5. A hyperlink with text displayed on a page that is different from the title of the page to which the text links; a piped link. (slang)

复数 potholes