During the hours spent waiting in vain to see a bone doctor, I decided to take another track and try acupuncture.

在白白等待看骨科医生的几个小时里，我决定换一种方式，去尝试针灸。

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Office workers try, often in vain, not to doze off at their desks after arduous, sweaty journeys.

办公室职员在费劲且汗流浃背地赶到公司后试着不去打瞌睡，可总是不尽人意。

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I try to sing a song, but in vain.

我想唱一支歌，但是唱不出来。

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Children of the current generation will be poorer for it if they never get to linger over a vast paper map and then try in vain to fold it back into its original shape.

WSJ: Lost in Our Maps: A History of Cartographic Catastrophes

Still, those at the Fed are nothing if not hubristic, and they'll surely try in vain to be ahead of collapsing markets despite their inability to predict them in the past.

FORBES: Magazine Article

In midfield, Charlton's Nicky Bailey did as much as he could to try to get them promoted - ultimately in vain - but he never gave up and is a player you'd want on your side.

BBC: Ask Steve Claridge