to no avail

acb

a∙vail¹ / əˈvel ; əˈveɪl /
◙noun
1. be to / of no avail,  if something you do is to no avail orof no avail, you do not succeed in getting what you want
• 没结果，无效果:
»We searched the whole area but all to no avail.Robbie had disappeared.
  我们搜遍了整个地方但毫无结果，罗比失踪了。

avail²
◙verb
1. avail yourself of sth, [formal] to accept an offer or use anopportunity to do something
• 利用〔提议、机会等〕:
»How many schools avail themselves of thisopportunity each year?
  每年有多少学校利用这种机会？

avail
avail / əˈveil /

noun   

IDIOMS
▪ to little / no a'vail
(formal)  with little or no success
   没有什么效果；不成功:
   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。
▪ of little / no a'vail   (formal)  of little or no use
   没有什么用处；没有用:
   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。

verb [VN]
   (formal or old-fashioned)  to be helpfulor useful to sb
   有帮助；有益；有用

PHRASAL VERBS
▪ a'vail yourself of sth (formal)
   to make use of sth, especially an opportunity or offer
   利用(尤指机会、提议等):
   Guests are encouraged to avail themselves of the full range ofhotel facilities.
   旅馆鼓励旅客充分利用各种设施。

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