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。 |