vain

比较级：

形容词比较级: vainer

更多词形：

副词: vainly | 形容词比较级: vainer | 形容词最高级: vainest | 名词: vainness |

单词例句：

They tried in vain to open the locked door.

他们妄图打开锁着的门。

All our work was in vain.

我们的工作全都白干了。

He tried in vain to lure her away from husband and home.

他企图诱使她离开丈夫和家庭，结果是枉费心机。

She is vain and extravagant.

她既爱虚荣又奢侈。

She's very vain about her good looks.

她为她那好的容貌而自负。

I did my best to stop her but in vain.

我竭力阻止她，但无济于事。

The farmer out his claim to all the land before the prospectors came, but it was in vain.

这位农场主在探矿者到来之前立桩标明他对所有这些土地的所有权，但这是徒劳。

She tried in vain to push through the crowd.

她怎么也无法从人群中挤过去。

A vain, self-important, silly, or aggressively stupid person.

愚蠢的人自负的，妄自尊大的，愚蠢的或过分自信的笨蛋