| 释义 | 
		sierrasi‧er‧ra /siˈerə/ noun [countable]    sierraOrigin: 1500-1600 Spanish, Latin serra  ‘saw’  - A brief review of the structure of sierra society will illustrate this point.
 - There are approximately three million persons residing in the sierra who speak only Quechua or Aymara.
 - They know a white sierra car was seen stalking the area and are warning other house owners to be on their guard.
 
    a row or area of sharply pointed mountains  |