CN index

例句：

1. 1. The CN index has been steadily increasing since the beginning of the year.
   自年初以来，中国指数一直在稳步上升。
2. 2. The CN index is closely followed by investors worldwide.
   全球投资者密切关注中国指数。
3. 3. The CN index has a significant impact on global markets.
   中国指数对全球市场有重大影响。