But while the snub shape may be attractive, it is not necessary a blessing.
尽管翘鼻子可能有魅力，但这未必是福。
This is a necessary consequence of progress.
这是发展的必然后果。
For him, reading was a necessary prelude to sleep.
对他来说，阅读是入睡的必要前奏。
This was a dreadful crime and a severe sentence is necessary.
这是一种骇人听闻的罪行，重判是必要的。
A radical overhaul of the tax system is necessary.
有必要彻底改革税制。
A clearly quantifiable measure of quality is not necessary.
一种确切的可计量的质量检测是不必要的。
A gift is necessary when one is invited to visit friends in China.
在中国，应邀去拜访朋友时，礼物是必要的。
A further discussion on the matter is necessary.
关于这件事的进一步讨论是必要的。
A command of information is the necessary prerequisite to the scientific consideration of any subject.
掌握资料是科学地思考任何问题的必要的先决条件。
Please leave a space between the lines for the necessary corrections.
在行与行之间要留出间隙，以便作必要的修改。
A person shouldn't buy insurance protection that really isn't necessary.
一个人不应该买不必要的保险。
It is by and large a necessary evil.
总的来说，这是一种必要的邪恶。
Such a system could, if necessary, move troops quickly from one area to another.
如果有必要的话，这样的系统可以使部队迅速地从一个地区转移到另一个地区。
I clearly realize that professional knowledge is necessary if I want to get a good job.
我清楚地意识到如果我想要一份好的工作，专业知识是必要的。
I think at the beginning of each book a brief introduction to it is necessary.
我认为每本书开头的简短介绍都是很有必要的。
Two or three friends, a small tent, sleeping bags, food and drink are necessary.
两三个朋友、一个小帐篷、睡袋，还有食物和饮料都是必要的。
Both physical fitness and mental attitude are necessary factors to be a successful sportsman.
身体素质和心态都是成为一名成功运动员的必要因素。
Team spirit is necessary not only for a team's success but also for personal development.
团队精神不仅对一个团队的成功是必要的，而且对个人发展来说也是必要的。
Is breakfast a necessary start to the day or a marketing tactic by cereal companies?
早餐真是一天的必要开始，还是谷物公司的营销策略？
If we keep working toward that goal, someday, perhaps, a list won't be necessary.
如果我们继续朝着这个目标努力，也许有一天就不需要清单了。
Higher taxes may be a necessary evil.
提高税率虽不是件令人愉快的事，但可能是必要的。
It may also be necessary to get a new appraisal of the property.
可能还需要对该房产做个新的估价。
At least a year's preparatory work will be necessary before building can start.
在建造开始之前至少需要一年的准备工作。
Responsibility and reliability are necessary qualifications, as well as a friendly and outgoing personality.
责任感和可靠性是必需的素质，友善和外向的性格也必不可少。
It may be necessary to buy a new one.
也许有必要买个新的了。
It might be necessary to make a few slight modifications to the design.
也许有必要对这个设计稍作几处修改。
Previous teaching experience is a necessary qualification for this job.
教学经验是担任这项工作的必备条件。
It is not, in principle, necessary for a biological system to age and die.
原则上来说，生物系统的衰老和死亡都不是必然的。
Besides, a good knowledge of computer science is also necessary for AI designing.
此外，良好的计算机科学知识对AI设计也是必要的。
In order to know a foreign language thoroughly, four things are necessary.
为了完全掌握一门外语，有四点至关重要。
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