vain

美 [veɪn]
英 [veɪn]
  • adj.徒劳的;枉然的;无结果的;自负的
  • 网络白费;虚荣的;空虚的
比较级:vainer  最高级:vainest  
vain
adj.
1.
徒劳的;枉然的;无结果的that does not produce the result you want
She closed her eyes tightly in a vain attempt to hold back the tears.
她紧闭双眼,却无法忍住眼泪。
I knocked loudly in the vain hope that someone might answer.
我敲门敲得很响,希望有人应声,却是徒然。
2.
自负的;自视过高的too proud of your own appearance, abilities or achievements
She's too vain to wear glasses.
她太爱虚荣,不肯戴眼镜。

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