call up phr v 1 [I,T call sb ↔ up] especially AmE to telephone someone 【尤美】 （给某人）打电话: Why don't you call Suzie up and see if she wants to come over? 你为什么不打电话给苏齐，看看她是否想过来？ 2 [T call sth ↔ up] to make information appear on a computer screen 使〔信息〕显现在电脑屏幕上 3 [T call sb ↔ up] BrE to officially order someone to join the army, navy, or AIR FORCE 【英】 征召…入伍; DRAFT AmE 【美】