Adjective:

1. having a base;

   "firmly based ice"
   

2. having a base of operations (often used as a combining form);

   "a locally based business"
   "an Atlanta-based company"
   "carrier-based planes"
   

basen.底部；基地；基础；基数；基线；(棒球)垒；[化]碱vt.以 ... 作基础adj.卑鄙的；不道德的basedRAMn.基本随机存取存储器base hum基极交流声,基极哼声base map工作草图,底图,基本地图base jet底部喷流base act卑鄙的行为base fog乳剂灰雾basetimen.基时basenessn.卑鄙；下贱base pad底垫base wad底垫

1. We are based in Chicago.
   我们在芝加哥生活。
2. The company's headquarters is based in London.
   这家公司的总部设在伦敦。
3. This novel is based on historical facts.
   这部小说是以历史事实为根据的。
4. A good marriage is based on trust.
   美满的婚姻是建立在互相信任的基础上的。