各种严重的并发症延迟了他的出院。Serious complications have delayed his release from hospital.可能出现的一种并发症是脱垂。One complication which can arise is a prolapse.他死于心脏病发作引起的并发症。He died of complications from a heart attack....
He has a great number of English idioms at his command.他掌握了大量的英语成语.A great number of water fowls dwell on the island.许多水鸟在岛上栖息.It affords a livelihood to a great number of people.这给许多人提供了生计....