1、A simple error message if the request wasunsuccessful.(如果请求不成功，输出一个简单的错误消息。)
2、unsuccessful, he called the police.(仍未成功，他打电话报警。)
3、He also trained as a gauger or exciseman in case farming continued to beunsuccessful.(他还接受了收税官的培训，以防农业开展持续不成功。)
4、The difference between successful andunsuccessful people is that successful people put into practice the things they learn.(成功者和失败者之间的区别是成功者将他们所学的东西付诸于实践。)
5、They wereunsuccessful in meeting their objectives for the year.(他们未能达到年度目标。)
6、That's whyunsuccessful people have so many excuses.(这就是为什么不成功的人有很多借口的原因。)
7、And behind everyunsuccessful man, there are two.(每个不成功男人的背后，都有两个。)
8、unsuccessful at screen writing, he got a spot on a CNN show.(电影剧本创作方面未能成功，之后他在CNN得到了一个固定节目档。)
9、In the nineteenth century, scientists made a number of important, butunsuccessful attempts to calculate Earth's age from the record of various natural processes.(19世纪，科学家们做了许多重要的尝试，希望通过各种自然过程的记录来计算地球的年龄，但都未能成功。)
10、Unfortunately attempts to crossbreed it with other potatoes have beenunsuccessful.(不幸的是，将它与其他土豆品种杂交的尝试均告失败。)
11、His first sortie into politics wasunsuccessful.(他初涉政坛并不成功。)
12、Thisunsuccessful ordeal had taken almost 3 hours!(这个失败的试验居然耗掉我3个小时！)
13、Fail—"a noun or interjection used when something is egregiouslyunsuccessful"—was 2009's the most useful word.(失败——“名词或感叹词，当某事非常不成功时使用”——被评为2009年最有用的单词。)
14、There are successful coupon clippers and successful securities resellers and they tend to make their money off of theunsuccessful people in the other class.(既有成功的票息剪券投资者，也有成功的债券经销商，他们倾向于从其他阶层不成功的人们身上赚钱。)
15、The climbers face certain death if the rescue today isunsuccessful.(救援行动如果今天不能成功，登山队员必死无疑。)
