use/apply/avail/utilize.导航词义：应用，使用

1. use:v. 使用；利用.泛指使用工具、设备、服务等，也指利用某人或某项优势。

What does he use for picking up groceries?

他用什么运送食品杂货？

Can I use your shampoo?

我能用你的洗发水吗？

It was obvious that he was just using you.

很明显，他只是在利用你。

He used his position as manager to banquet at public expenses.

他利用自己的经理一职公款吃喝。

2. apply:v. 应用，使用.指将技术、方法、观念、法律等用于某一领域、流程、活动等中以发挥其作用。

They applied the new technology to this field.

他们把新技术运用到该领域。

Don't you think that these ideas are difficult to apply in practice?

难道你不觉得这些方法很难实际应用吗？

3. avail:v. 利用.多指利用机会、提议等，常用于 avail oneself of sth 结构中。

How many students can avail themselves of this opportunity each year?

每年多少学生能够利用这种机会？

This hotel encourages the guests to avail themselves of the full range of recreation facilities.

这家酒店鼓励旅客充分利用各种娱乐设施。

4. utilize:v. 利用，使用.指为了某一目的而使用某事物。

This classroom is mainly utilized for training purposes.

这间教室主要用于培训。

You must consider how to better utilize the resources at your disposal.

你们必须考虑如何更好地利用所掌握的资源。

When did the Romans begin to utilize concrete as a building material?

罗马人何时开始使用混凝土作建筑材料的？

全部

1·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。《牛津词典》

2·His efforts were to no avail.

他的努力是徒劳的。《柯林斯英汉双解大词典》

3·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。《牛津词典》

4·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。《柯林斯英汉双解大词典》

5·He had the receptionist almost jumping through hoops for him. But to no avail.

他让接待员为他几乎饱经折磨，但根本没有用。《柯林斯英汉双解大词典》

6·Guests are encouraged to avail themselves of the full range of hotel facilities.

旅馆鼓励旅客充分利用各种设施。《牛津词典》

7·She found him sleeping heavily, and all her efforts to awaken him were of no avail.

她发现他睡得很沉，她想唤醒他的一切努力都无济于事。

8·Of what avail is it?

何济于事?《新英汉大辞典》

9·I am afraid my eloquence did not avail against the facts.

恐怕我的雄辩也无补于事实了。《新英汉大辞典》

10·Now it's done, regrets are of no avail.; It's no use crying over spilt milk.

事已如此， 后悔也是枉然。《新英汉大辞典》

效用

1·Based on the cost and profit, cost and result, cost and avail theory of health economy, this paper studys the evaluation system of hospital economy management and its mode.

运用卫生经济学成本效益、成本效果、成本效用的理论，研究我军医院经济管理评价体系及运行模式。

2·To analyze economics, a hidden precondition needs to be satisfied: ethics is an exiguous resources, it must be optimized and assigned reasonably to maximize its avail.

对道德进行经济学分析，实际上隐含着如下前提：道德是一种稀缺资源，为了实现其效用最大化，必须进行选择优化和合理配置。

3·We use land value, land rent, boundary avail value etc as the basic theories to count the value of karst tourist resources.

我们以地产价值、地租、边际效用价值等理论作为喀斯特旅游资源的价值核算的理论基础。

4·The facts have testified that team cooperation could make the performance with multiplicator avail.

事实证明以团队合作方式进行生产能使工作绩效具有乘数效用。

5·The coefficients of weight in this model are derived from the avail value of data reflecting the information entropy, by this method the problem of weight allocation can be avoided.

引用信息熵所反映数据本身的效用值来计算指标的权重系数，有效地避免了权重分配困难的问题。

有益于

1·Jail life made the frail retailer avail every snail in the pail.

监狱生命使脆弱的零售商在桶里有益于每只蜗牛。

2·Jail life made the frail retailer avail every snail in the pail.

监狱生命使懦弱的零售商在桶里有益于每一只蜗牛。

(1)to no avail无效，完全无用

(1)not avail someone对某人不起作用

(1)of no avail无效；不起作用

(1)avail of利用

(1)without avail无用；徒劳地

(1)of avail有效，有用处