我们想使他改变主意，结果是白费心机。
查理斯向哥哥请教数学。但他是白费心机了，他哥哥的数学一点也不好。
Charles asked his brother to teach him math. but he is barking up the wrong tree. His brother isn't good at math at all.
警方在远离劫案发生地近50英里的地方开始调查，恐怕他们是在白费心机。
I'm afraid the police are barking up the wrong tree by starting their investigation nearly 50 miles from where the robbery happened.
倘若你把它当作目标来追求，那将是一场白费心机的追逐，永远也不会成功。
Make it the object of pursuit and it leads us on a wild-goose chase, and is never attained.
白种人以为如此一来就可以把土著居民的孩子变得和他们大致一样，却不过是白费心机。
It was a vain attempt by whites to make an 7 Aboriginal child more like them.
娇小型的人如果以为穿上很高的高跟鞋或梳高耸的发型，就能使得身材瘦高，那是白费心机的。
Jiao small people think that if wearing high heels or high section of the towering hair, we can make is of Shougao, it is a wasted effort.
那一刻我父亲进来时我就可以看出来他闷闷不乐的脸，他的努力找到一份工作已 经是白费心机再来一次。
The moment my father came in I could see from his worried face that his effort to find a job had been in vain once again.
那一刻我父亲进来时我就可以看出来他闷闷不乐的脸，他的努力找到一份工作已 经是白费心机再来一次。
The moment my father came in I could see from his worried face that his effort to find a job had been in vain once again.
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