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1·Try to defeat me but try in vain. When I win I end your pain. (Grinning Skull).

试著打败我，但是徒劳。当我赢时，结束你的痛苦。(露齿头骨)。

2·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。

3·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。

4·I try to sing a song, but in vain.

我想唱一支歌，但是唱不出来。

5·But I expected them to give me a reply about giving or not, because if they said no, I could try other ways instead of waiting in vain.

因为如果对方说不行的话，我可以另外想办法，而不用空等。

6·He try to deceive his mother but in vain.

他试着欺骗他的妈妈，但失败了。

7·I rode to his office which located on 25 St. Clair Avenue East to try to find what the problem was, but in vain.

我骑车到他位于“圣可利大道东25号”的办公室去，想弄清楚到底是怎么回事，但只是徒劳。

8·By analyzing the relation between demand and income, scholars try to draw up some plans, but in vain.

许多学者从需求与收入的关系入手，提出了增加收入扩大需求的对策。

9·All his try are in vain.

他的一切尝试全归无效。

10·In vain did David try to stop the job from being done.

大卫试图阻止在进行中的工作没有结果。