The doctors tried everything to keep him alive but to no avail.
医生千方百计想使他活下来，但无济于事。
Your ability to argue is of little avail if the facts are wrong.
如果论据是错的，你的辩才也就没有什么用了。
何济于事?
Such a statement will not avail.
这样的声明没有什么用。
The advice we got was of no avail.
我们得到的这个建议根本没用。
We opposed the proposal but to no avail.
我们反对这个提议，但没用。
Money does not avail on a desert island.
金钱在荒岛上没有用处。
但这一切都无济于事。
Nothing could avail against the enemy attack.
无法遏制敌人的进攻。
I would like to avail myself of this exercise.
我愿意借此锻炼一下。
Nothing could avail against the enemy attack .
没有什么可以挡得住敌人的进攻。
Pleading to the king for mercy was of no avail.
恳求国王的怜悯是没有用的。
The video tutor also has a couple of avail aments.
视频辅导也有一些缺陷。
All our efforts to save her did not avail anything.
我们为救她所作一切努力都无效。
Wang tried to negotiate a solution, but to no avail.
王兴曾试图协商解决问题，但最终都以失败告终。
Mr Pan deleted his original blog post but to no avail.
潘石屹先生后来删除了原先的微博，但于事无补。
Weapons are of no avail without the people who use them.
只有武器而没有使用它们的人，武器是空的。
I tried to persuade her not to resign, but to no avail.
我劝她不要辞职，但她不听我的。
We tried and tried, but it was all to no avail: we failed.
我们一再努力，但这一切都无济于事：我们失败了。
I'm sorry, madam, I'm afraid we don't have any avail-able.
对不起，女士，我恐怕我们没有任何可用的了。
Usually, they have tried all proven therapies, to no avail.
一般来说，他们已然尝试过所有经过验证的疗法，却徒劳无功。
I will avail myself of the opportunity of speaking English.
我要利用这种讲英语的机会。
I would like to avail this opportunity to propose the following.
我愿借此机会，提出以下几点建议。
If that is of no avail I will take another, and yet another.
即使我的这一次行动是无效的，但是我仍会继续尝试下去。
Well, I know I am now, no matter what to say to no avail of!
好了，我知道我现在不管说什么也是没有用的了！
So the guard watched him ever more closely, but to no avail.
所以警卫更加小心地盯紧他，但是这样做完全于事无补。
They must have tried to heal the divisions, but to no avail.
他们一定曾经尝试过消除分歧，但收效甚微。
So the guard watched him ever more closely, but to no avail.
所以卫兵看他看得更紧了，但没有用。
To avail these facilities from outside is often too expensive.
从“工寮”外面得到这些设施一般是极为昂贵的。
We try to help, giving our time and soul, but it's to no avail.
我们试图付出时间和灵魂来帮助，但一切都无济于事。
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