CIS

美 [ˌsiaɪ'es]

英 [ˌsi:aɪ'es]

abbr.独立国家联合体
n.【组】独立国家联合体
网络企业形象识别系统(Corporate Identity System)；企业识别系统；临床信息系统(Clinical Information System)

权威英汉双解

cis

abbr.

1.	独立国家联合体，独联体（由 1991 年之前的苏联主权国家组成）Commonwealth of Independent States (a group of independent countries that were part of the Soviet Union until 1991)