vain: adj.1.徒然的,无益的,没效果的;愚蠢的;不足道的。2.空的,空虚的;虚有其表的,表面好看的,虚饰的。3.自夸的,自负的;爱虚荣的。短语和例子vain efforts 徒劳。 vain titles 空名,虚衔。 a vain attempt 妄想。 a vain man 虚荣心强的人。 be vain of 自夸,自以为…了不起 (She is vain of her
But when she decided to start her journey , she found herself gradually disappearing into the mud and sand . after numerous tries , she found it was all in vain and was very upset 当它决定越过沙漠时,却发现自己的河水渐渐消失在泥沙中,它试了一次又一次,总是徒劳无功,最后它灰心了。