分类：教育/科学-外语学习
问题：升旗仪式是flagrisingceremony还是flagrai? 
回答：应该是flag raising ceremony，有书为证：
HONG KONG, July 1 (Xinhuanet) -- Chinese Premier Wen Jiabao attended a flag raising ceremony here early Tuesday morning marking the sixth anniversary of Hong Kong's return to the motherland 

flag rising ceremony 是旗子自己往上爬仪式

这种用法很多啊，像
raise flag---flag raising
shake hand---hand shaking
drive car----car driving