读这篇文章对你没什么帮助除非你将下面这些例子每个都重复几遍。
This method, not only to prevent school bus accident be of no help, and may even trigger a school to cancel bus service, by parents to escort.这种方法,不仅对杜绝校车事故无补于事,甚至可能引发学校取消校车服务,由家长自行接送。
I once read a letter written by a young invalid, in which he told a friend that he had just found out he would not live for long, that even an operation would be of no help.有次,我读到一封由某个半身不遂的年轻人写给他朋友的信。信上说,他才刚获悉自己将不久于人世,即使动手术也终归徒劳。