The Centers for Disease Control also suggest that sneezing and coughing into your elbow is necessary.
美国疾病控制中心也建议，对着肘部打喷嚏和咳嗽是必要的。
I imagine that, while money is indeed wonderful and necessary, rereading an author's work is the highest currency a reader can pay them.
我想，虽然金钱确实是美好和必要的，重读作者的作品是读者能支付给他们的最高货币。
Once you have a first draft on paper, you can delete material that is unrelated to your thesis and add material necessary to illustrate your points and make your paper convincing.
一旦你有了论文的第一份草稿，你就可以删除与你的理论不相关的材料，并有必要增加阐释你的观点和让你的论文更有信服力的资料。
To compare the compositions of a meteorite and the Sun, it is necessary that we use ratios of elements rather than simply the abundances of atoms.
为了比较陨石和太阳的成分，我们需要利用元素的比率，而不单单是原子的丰度。
It is necessary that a critic develop a sensibility informed by familiarity with the history of art and aesthetic theory.
批评家必须在熟悉艺术史和美学理论的基础上培养一种感性。
McWhorter acknowledges that formal language is not strictly necessary, and proposes no radical education reforms—he is really grieving over the loss of something beautiful more than useful.
McWhorter承认正式的语言并不是绝对必要的，也没有提出任何激进的教育改革——他实际上是在为失去一些美丽但相对不实用的东西而悲伤。
They argue that government action is necessary to curb Britain's addiction to unhealthy food and help halt spiraling rates of obesity, diabetes and heart disease.
他们认为，政府有必要采取行动来阻止英国人吃不健康的食物，并帮助防止肥胖率、糖尿病和心脏病发病率的螺旋式上升。
It is necessary that we weigh the pros and cons of including English words in Chinese dictionaries.
权衡在汉语词典中加入英语单词的利弊，这对我们来说是很有必要的。
For all that is necessary is to pick up a mitt and get in the game.
对所有人来说都有必要拾起手套，加入这场博弈。
What traffic teaches us is that reckless and uncontrolled change is as likely to harm us as it is to benefit us, and that thoughtful regulation is necessary for a better future.
交通教会我们的是，不计后果、不受控制的变化既可能造福我们，也可能伤害我们，而考虑周到的监管对更美好的未来而言非常必要。
This school is an important part of the community and it's necessary that it should continue.
这所学校是社区的重要组成部分，有必要继续办下去。
Very talented companies are working on it. There is a medical equipment that can be used at home to send necessary signs and heart sounds through telemedicine.
一些人才济济的公司正着手进行这一研究。有一种可在家使用的医疗设备，能够采用远程医疗的方式发送必要的体征和心音。
And if that is the case, it is always good to have all the necessary tools in hand and that is why we think assisted reproduction does make sense.
如果真的是那样，那么手头上有所有必要的工具始终是件好事，这就是为什么我们认为辅助生育确实起作用了。
Then go through each item on that list and ask if it is either necessary or directly helpful.
然后按照清单，逐项过一遍，看看它们是否有必要或有直接帮助。
Margaret Bray says that is a necessary and effective measure.
布雷说，这是必要和有效的措施。
But the simple truth is that our chain of necessary and desired enforcement is only as strong as its weakest link.
但一个简单的道理是，我们需要和期望的执法链条强不过最薄弱的环节。
China has taken similarly bold steps and we both agree that further economic and financial cooperation is necessary for global recovery.
中国已采取类似的大胆措施，而且我们双方均认为，进一步的经济和金融合作对全球复苏是必要的。
For discussion purposes, let's describe the content for just one feature and plug-in that is necessary in the run-time configuration.
为了进行讨论，我们先描述一下只有一个功能部件和插件时在运行期配置中需要的内容。
Many patterns exist, and that context is necessary to get started.
存在很多模式，而上下文是开始使用的必要条件。
Others will say it is part of the necessary, institutionalised and never-ending quarrel that is the genius of the American system.
而其他人则会反驳说，制度化和无休止的争吵正是美国体制的高明之处，是完全必要的。
Obviously, there are times that bucking convention is necessary and beneficial.
很明显，有时候，破除约定俗成的东西是必要且有益的。
This might provide the kind of partnership between church and parents that Joiner and Nieuwhof ultimately belief is necessary for the most meaningful parenting.
这可能提供了教堂和家长之间的伙伴关系的那种乔伊纳和Nieuwhof最终信念是最有意义的父母必要的。
And to protect that balance, death is necessary.
为了平衡，有时候死亡是必须的。
If being lazy is about using more leverage and doing less, the support and scaffolding necessary to do that is created with systems.
如果懒惰是使用更多的手段并做更少的事，那么这么做所需要的支持和台架就是建立一个体系。
This is necessary so that generalizing and specializing transforms can map values simply and accurately.
为了保证泛化和专门化转换能够简单而准确地映射值这是必需的。
Now that you have added all the code necessary, all that is left is to test your plug-in and to debug, if necessary.
目前为止您已经添加了所有必需的代码，现在只需测试并调试（如果需要的话）这个插件。
Recommit to doing the work that is necessary for you and your future partner.
重新体验一遍对你和你将来的另一半都是很有必要的事情。
Multilingualism opens fabulous opportunities for the dialogue that is necessary to understanding and cooperation.
多语言使用为理解与合作所必需的对话创造了绝佳的机会。
Remember, however, the goal is not to be 100% compatible with XHTML, but to begin incorporating XHTML where feasible, allowing a quick and easy transition when that is necessary.
不过，请记住，目的并不是与XHTML 100%兼容，而是在可行的情况下开始结合XHTML，使得需要时允许快速和简单的过渡。
Remember, however, the goal is not to be 100% compatible with XHTML, but to begin incorporating XHTML where feasible, allowing a quick and easy transition when that is necessary.
不过，请记住，目的并不是与XHTML 100%兼容，而是在可行的情况下开始结合XHTML，使得需要时允许快速和简单的过渡。
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