1、Parents campaigned invain for her reinstatement.(家长们为她的复职而奔波，但是毫无结果。)
2、He married his fourth wife, Susan, in thevain hope that she would improve his health.(他怀着她能改善自己健康的徒然希望娶了第4个妻子苏珊。)
3、They tried invain to persuade her to go.(他们极力劝说她去，但枉费了一番口舌。)
4、Have you been taking my name invain again?(你又在滥用我的名义吧？)
5、Isabelle was a frivolous little fool,vain and flighty.(伊莎贝尔曾是一个轻率的小傻瓜，自负而轻浮。)
6、I think he is shallow,vain and untrustworthy.(我认为他浅薄、虚荣、不可信。)
7、He stopped at the door, waiting invain for her to acknowledge his presence.(他停在门口，徒然地等着她跟自己打招呼。)
8、A seemingly endless line of trucks waits invain to load up.(看上去没有尽头的一排卡车徒劳地等着装货。)
9、He was self-important,vain and ignorant.(他自大、虚荣、而且无知。)
10、She tried invain to point out to him the unfairness of his actions.(她试图向他指出他的做法不公正，但无济于事。)
11、She's toovain to wear glasses.(她太爱虚荣，不肯戴眼镜。)
12、The drafting committee worked through the night in avain attempt to finish on schedule.(起草委员会徒劳地通宵工作想按期完成工作。)
13、The plane circled twice, trying invain to line up with the runway.(飞机盘旋了两圈，试图对准跑道降落却没成功。)
14、She is perceived asvain, spoiled, and promiscuous.(她被认为是个虚荣、娇生惯养、淫乱的女人。)
15、They were avain and boastful company of heroes when the tale was done.(故事结束时，他们是一群自负虚荣的英雄。)
16、He wasn't sovain as to think he was smarter than his boss.(他还没有自负到以为他比自己的上司还精明。)
17、I knocked loudly in thevain hope that someone might answer.(我敲门敲得很响，希望有人应声，却是徒然。)
18、He prayed, he wept, he sorrowed, but all invain.(他祈祷，他哭泣，他悲伤，但都是徒劳的。)
19、Invain he declared his innocence; he was dismissed with no better answer.(他宣称自己无罪，却徒劳无功；他没有更好的回答就被解雇了。)
20、She searched invain for her passport.(她翻找自己的护照，但没找着。)
21、She's just avain, foolish woman.(她不过是个愚蠢自负的女人。)
22、Heidi struggled constantly against her sorrow, but invain.(海蒂不断地与悲伤作斗争，但白费力气。)
23、A humble man falls in love with himself; avain man falls in love with his reflection.(一个谦虚的人爱上的是他自己；而一个虚荣的人爱上的却是自己的倒影。)
24、Our efforts were not invain.; we didn't waste our energy.(我们的力气没有白费。)
25、He wants the world to know his son did not die invain.(他想让世人知道他儿子的死不是毫无意义的。)
26、They sought invain for somewhere to shelter.(他们怎么也找不到一个藏身的地方。)
27、He wasvain and bombastic.(他既虚荣又浮夸。)
28、All our efforts were invain.(我们的所有努力都付诸东流了。)
29、Evidently she was racking her head invain--it seemed manifest that she must give the matter up.(显然，她徒劳地绞尽脑汁——显然她必须放弃这件事。)
30、"No," said he, "it is all invain."(“不。”他说，“一切只是徒劳。”)
