0 of no use or effect -- không có hiệu quả
His efforts were of no avail.
He tried to revive her but to no avail
1 if you avail yourself of an offer or opportunity, you make use of it -- tận dụng
They availed themselves of the opportunity to catch up on sleep.
I have not so far availed myself of that opportunity.
Why had he not availed himself of the tribunal procedure?
Many highway authorities will, no doubt, be availing themselves of this arrangement.
Have any of these gentlemen availed themselves of the right under the regulations to ask upon what ground they are imprisoned?
They can be availed of on various occasions where hitherto there has been a difficulty in not having them.
I do not imagine that it would be availed of by any considerable parish.
Access funds are intended to help students who face severe financial difficulties after availing themselves of all other public sources of support.
Details of the numbers of patients who have availed themselves of the counselling services provided elsewhere in the country are currently being collected.
