盆地

盆地 (pén dì) refers to a geographical landform that is surrounded by higher elevations on all sides, typically with a flat or depressed center. It is often used in the context of natural basins, such as river basins or mountain basins, and is distinct from valleys or plains, which are not necessarily enclosed.

The character 盆 (pén) originally means 'bowl' or 'basin,' symbolizing a depression or container. 地 (dì) means 'earth' or 'land.' Together, they literally translate to 'earth basin,' describing a landform shaped like a bowl.

盆地 is commonly used in geography and geology. For example, the Sichuan Basin is a famous region in China. It is also used metaphorically, such as in phrases like “陷入盆地” (xiàn rù pén dì), meaning