英语语法分析

Such levels of oversubscription ensure sharp rises on the first day of trading, enabling companies to boast of a "successful IPO" and rewarding investors for the long hours spent queuing.

高涨的认购超额水平，势必使股价在交易首日飙升，使上市公司能为“成功的IPO”而自吹自擂，也使排了数小时队的散户投资者得到回报。