vain的读音是：英[ve?n]。vain的词源解说是☆ 直接源自古法语的vain，意为没有价值的；最初源自拉丁语的vanus，意为空着的。vain的意思是adj.自负的；徒劳的；无效的；虚荣的。
一、详尽释义点此查看vain的详细内容
二、双解释义
三、英英释义
"a conceited fool"
"an attitude of self-conceited arrogance"
"an egotistical disregard of others"
"so swollen by victory that he was unfit for normal duty"
"growing ever more swollen-headed and arbitrary"
"vain about her clothes"
"a fruitless search"
"futile years after her artistic peak"
"a sleeveless errand"
"a vain attempt"
四、例句
She is vain and foolish, and yet people like her.
她自负而愚蠢，然而人们喜欢她。
She is vain of her voice.
她自以为她的声音了不起。
They endeavoured to make her happy but in vain.
他们尽量使她快乐，却徒劳无功。
All his father's exhortations were in vain.
他父亲的一切劝告都无效。
We tried in vain to make him change his mind.
我们想使他改变主意，结果是白费心机。
The world had made him extravagant and vain.
世俗使他变得放荡不羁，虚荣自负。
She is so vain that she can't pass a mirror without looking into it.
她好爱虚荣,每经过一面镜子都要照一下。
五、常见句型
六、常用短语
七、词源解说
vain的相关近义词
vain的相关反义词
vain的相关临近词
val、vail、Vaino、Vaini、Vaina、Vaine、Vainio、Vainar、vainly、Vaindl、Vainkop、Vainsot