availof little/no a'vail(formal)1.■of little or no use 没有多大用处；没有用:Your ability to argue is of little avail if you get your facts wrong. 要是论据错误，你辩论的本领再高也没有什么用。to little/no a'vail (formal)2.■with little or no success 没有什么成果；不成功:The doctors tried everything to keep him alive but to no avail. 医生们竭尽全力抢救他的生命，但却徒劳无功。