对...必不可少

In conventional treatment, painkillers, such as paracetamol, are essential.

在常规治疗，止痛药如对乙酰氨基酚，是必不可少的。

They understand Saudi Arabia, its needs and the way it works almost as well as any Saudis.

他们了解沙特阿拉伯，他们的需要和从事的工作对沙特来说几乎必不可少。

They are the possessions of the autonomous selfgoverning man of traditional theory , and they are essential to practices in which a person is held responsible for his conduct and given credit for his achievements.

自由和尊严是传统理论中自主人所拥有的东西，也是一个人在对自己的行为负责并因其成就而受到赞扬的实践中所必不可少的东西。

They are the possessions of the autonomous selfgoverning man of traditional theory,and they are essential to practices in which aperson is held responsible for his conduct and given credit for his achievements.

自由和尊严是传统理论中自主人所拥有的东西，也是一个人在对自己的行为负责并因其成就而受到赞扬的实践中所必不可少的东西。

It's been an absolute nightmare for Michael the last year or two and it looked as if it wasn't going to get any better when he had to be stretchered off at Watford. But he is someone that both Newcastle and England need.

&先前的一年或者说是两年吧，对迈克尔来说简直是一场噩梦，看起来人们一度认为他再也不会回来了，但是他确实英格兰和纽卡必不可少的人。&

Experimental results indicated that an introduction of small amount of gas into the expansion chamber could adjusted the particle flow pattern and flow rate effectively.

本文还对多级膨胀连续排灰系统在实际运行中必不可少的调控问题进行了探索，提出了气力调控方案。

Only one of these components is essential, the oil.

只对其中部分是必不可少的油品。

The 40 years photo collection of M+M Auer has traveled through the history of the photo art. They love photo art and are almost crazy for it. Their "Photographing Encyclopedia" published in 1985 is up to today the requisite reference book for the professional photographing artists.

Auer夫妇40年的影像收藏，穿越了影像艺术的历史，他们对影像艺术的热爱近乎疯狂，1985年他们出版的&摄影百科全书&，直至今天还是影像艺术专业人士必不可少的工具书。

It is an essential building block for all protein in the body and can be found in animal meats, fish, dairy products, legumes and brewer's yeast.

这是一个必不可少的建筑砌块对所有蛋白质在人体中，可以发现，在动物肉类，鱼类，乳制品，豆类及啤酒酵母。

Third, international co-operation is essential because this crisis has important implications for developing countries.

第三，国际协调是必不可少的，因为此次危机对发展中国家具有重要影响。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。