[ 第三人称单数 avails 现在分词 availing 过去式 availed 过去分词 availed ]
net avail 净收额
avail model 效用模型
avail area 有利区带
avail safety 有利于安全
maximal avail 最大效用
avail balance 利益平衡
avail function 效用函数
customer avail 顾客效用
avail analysis 效用分析
PHRASE If you do something to no avail or to little avail, what you do fails to achieve what you want. 徒劳 [书面]
His efforts were to no avail.
他的努力是徒劳的。
V-T If you avail yourself of an offer or an opportunity, you accept the offer or make use of the opportunity. 利用 [正式]
Guests should feel at liberty to avail themselves of your facilities.
客人们应可以随意使用你们的设施。
词组短语
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