原文: 56名来自56个民族的儿童簇拥着中国国旗，代表56个民族是一家[1].
Original: 56 children from 56 nationalities escort Chinese national flag, representing 56 nationalities in a family.
更为: 56名穿着各式民族服装的儿童簇拥着中国国旗，代表56个民族是一家.
Corrected: 56 children wearing various national costumes escort Chinese national flag, representing 56 nationalities in a family.
非官方特此更正!
Correcting unofficially especially!
References
1. 北京奥运开幕式上的“少数民族”儿童并非少数民族. http://cn.reuters.com/article/chinaNews/idCNChina-2035620080815?feedType=RSS&feedName=chinaNews. Aug 16, 2008