Internal hernias are rare, with reported incidence of 0.2% to 0.9% of autopsies.A substantial proportion of these remain asymptomatic.是什么意思_Internal hernias are rare, with reported incidence of 0.2% to 0.9% of autopsies.A substantial proportion of these remain asymptomatic.在线翻译_英语_读音_用法_例句