英语单词necessary的用法和辨析【精彩4篇】

necessary用作形容词，表示某事物的必要性，常与名词搭配，强调不可或缺的特性。可用于描述条件、行动或物品，语境中需注意与其他同义词如essential的区别。下面是勤劳的小编为大家分享的英语单词necessary的用法和辨析【精彩4篇】范例，欢迎借鉴参考。

necessary的.单语例句【第一篇】

1. It is necessary for SOE leaders to have their business expenses reimbursed.

2. Paying the costs for legally purchased software is necessary for business operations to be legitimate.

3. Effective policies should reflect today's business travel requirements, and managers need to make adjustments and recommendations whenever necessary.

4. It is necessary for the government to step up its efforts in working with the business sector to narrow the wealth gap in Hong Kong.

5. The company got the necessary approval from the State Drug Administration only last week and is now busy marketing the medicine.

6. New power generation will be necessary to buttress projected economic development, said Sun.

7. The legislation will also allow the government to buy up any kind of asset that top economic officials think is necessary to promote market stability.

8. An act of parliament would be necessary to enable a member of the upper house to become prime minister in the lower house of parliament.

9. These measures are necessary to give the people enough buying power to keep the economy going.

necessary的双语例句【第二篇】

1. Establishment of a good friend of network is necessary, because it may lead you to career success.

建立一个良好的朋友关系网是必要的，因为它可能引导你走向事业上的成功。

2. This year has just moved into new, I feel pretty good, it is conducive to learning, all very convenient, but the days gradually to enter the winter, unfortunately, it does not heat the building in winter, to heat, then, it is necessary to 800, 000 cross-network charges, the number of really good big ah!

今年刚刚搬进新寮房，感觉蛮不错的，很利于学习，一切都很方便，可是天渐渐的要进入冬季了，很可惜的，这楼房冬天不供热，如果要供热的话，要交入网费八十万，真是好大的数目啊！

3. A high and uniform temperature distribution along the outer surface of the combustion chamber is necessary to ensure a high radiation power density.

微燃烧室的外表面必须产生一个高而均匀的温度分布，以尽可能高地输出辐射能。

4. The abundance requirement for lacunaris plastic makes it is a consequent for the plastic producing with automation and high productivity. Therefore, it is very necessary to design a manipulator that can automatically fulfill the plastic holding. With the analysis of the problems in the design of the plastic holding manipulator and synthesizing the robot research and development condition in recent years, a economic scheme is concluded on the basis of the analysis of mechanical configuration, transform system, drive device and control system and guided by the idea of the characteristic and complex of mechanical configuration, electronic, software and hardware.

本文结合塑料一次挤出成型机和塑料抓取机械手的研制过程中出现的问题，综述近儿年机器人技术研究和发展的状况，在充分发挥机、电、软、硬件各自特点和优势互补的基础上，对物料抓取机械手整体机械结构、传动系统、驱动装置和控制系统进行了分析和设计，提出了一套经济型设计方案。

'A necessary evil' 不得不接受 | 地道英语【第三篇】

Feifei:

大家好，我是冯菲菲。欢迎来到 BBC 英语教学的《地道英语》节目。

Rob:

And hello I'm Rob.

Feifei:

You're looking pleased with yourself, Rob.

Rob:

I am. I've just booked these dirt cheap — I mean really cheap — flights to Ibiza!

Feifei:

Wonderful!

Rob:

Look at the price — 20 pounds return! That means extra money to spend on food, drink and partying.

Feifei:

诶，让我看看。你看这儿，说票价是二十镑，你还要付燃油附加税，加起来一百多镑了。

Rob:

Er? Let me see. You're right. Grrr, I hate paying tax.

Feifei:

I guess you could say it's a necessary evil.

Rob:

Hmm, you could say that — if you mean it's something bad that can't be avoided, and you have to accept it in order to achieve a good result.

Feifei:

That's exactly what I meant, Rob. 我们可以用 "necessary evil" 来描述“不愿让其发生但又无法避免的事情”，换句话说就是“不得不接受的事情，迫不得已的事情”。因为买飞机票就必须得付燃油附加税，所以是一个 "necessary evil"。 Let's hear some examples, shall we?

Examples

For me, exams are a necessary evil — you have to do them to get a place at university.

Sitting in traffic for hours is a necessary evil if I want to drive to the seaside on a public holiday!

Oh, I hate running. But having to exercise is a necessary evil if I want to stay fit and healthy.

Feifei:

这里是 BBC 英语教学的《地道英语》节目。我们正在教给大家的英语表达是“a necessary evil 一件不想做但必须做的事情”。And, Rob, that tax on your plane ticket is unavoidable — not so cheap now, is it?

Rob:

No. Less money for eating, drinking and partying.

Feifei:

Can you get a refund? Stay at home and eat, drink and party?

Rob:

I could, but if I stayed at home, there's another necessary evil I'd have to deal with.

Feifei:

What's that?

Rob:

I'll have to spend more time with you.

Feifei:

Hmm! What time is your flight exactly?

Rob:

Well, did I say something wrong?

Feifei:

Bye.

Rob

Bye.

necessary的用法和辨析相关文章：

necessary的中文意思【第四篇】

英 [ˈnesəsəri]　美 [ˈnesəseri]

第三人称复数：necessaries

necessary 基本解释

必要的；强制的；必然的；不可避免的；必需品；

necessary 相关例句

1. Death is the necessary end of life.

死亡是生命必然的终结。

2. Oxygen is necessary for life.

氧气是生命所必需的。

3. Sleep is necessary to health.

睡眠对健康是必要的。

4. Cars are a necessary part of life.

汽车是生活中的一个必不可少的组成部分。