正如这些实验所显示的，乞求显然提供了一种需要的信号，父母可以利用这种信号来判断哪些孩子能从喂食中获益最多。
As these experiments show, begging apparently provides a signal of need that parents use to make judgments about which offspring can benefit most from a feeding.
人类似乎也有一种需要归属感的强烈愿望。
把时间看作是一种需要最大化利用的资源，意味着你功利性地对待它，认为任何特定的时刻都应该充分利用起来以使其朝着某一既定目标迈进。
Thinking of time as a resource to be maximized means you approach it instrumentally, judging any given moment as well spent only in so far as it advances progress toward some goal.
是一种需要真正成就的成长。
既是一种赞美，也是一种需要维护的头衔。
这种解决问题的方法是一种需要练习的技巧。
This type of problem solving is a technique that needs to be practiced and curated.
像编写用例，编写用户经历都是一种需要学习和实践的能力。
Like writing use cases, writing user stories is a skill that must be learned and practiced.
还是一种需要熟悉经典文学或者流行文化才能体会的精致幽默？
Or a sophisticated humor that relies on a familiarity with classic literature or pop culture?
生财要素就是一种需要被产生、成长、培养与呵护的特质或属性。
A generative value is a quality or attribute that must be generated, grown, cultivated, nurtured.
这是一种需要全身麻醉的大手术，并且需要住院大约一星期到十天。
This is a major operation under general anaesthetic and involves being in hospital for about a week to ten days.
它也不是一次性的，而是一种需要培养的习惯，贯穿你剩余的人生。
It's not something you do just once, but a habit that you can form for the rest of your life.
我回想我的购物，假如我得到了这些钱，它是一种必须还是一种需要。
I think over my purchases, see if I've got the money, think about whether it's a need or a want.
首先必须理解：象其它所有编程语言一样，XSL只是一种需要实现的文法规范。
It must first be understood that XSL, like all other programing languages, is merely a grammar specification in need of an implementation.
被称为天才是一种崇高的荣誉；既是一种赞美，也是一种需要维护的头衔。
To be declared a genius is a high honor; a compliment to be sure, but also a big title to uphold.
已知鱼类中没有任何其它一种需要跨越地球四分之一路程去完成生命的历程。
"No other instance is known among fishes of a species requiring a quarter of the circumference of the globe to complete its life history, " he wrote in 1923.
来自身体的疼痛是一种需要我们关注的信号——我们不能教我们的孩子去忽视这样信号。
Pain from our bodies is a sign something is wrong and it needs our attention-we don't want to teach our children to ignore these signals.
他们满足了。。。” —他又在脑海里搜索了一下词语—“。。。一种需要。”
They fulfil a…” – he searches for the word again – “…a need.
因此，这种劳动不是满足一种需要，而只是满足劳动以外的那些需要的一种手段。
It is, therefore, not the satisfaction of a need but a mere means to satisfy needs outside itself.
字典里对动力的解释是导致一个人采取行动的某件事(比如一种需要或者愿望)。
And the dictionary says that a motive is something (such as a need or desire) that causes a person to act. 6.
当然，代码只是一种需要在J2EE环境中产生的构件，因此部署描述符也是必须的。
Of course, code is only one of the artifacts that needs to be produced in a J2EE environment, and so deployment descriptors are also necessary.
于是，决定服务的参与者是一种需要技巧的工作，并且通常会受到大量折中考虑的影响。
In the end, deciding on the service participants is something that takes skill and can be affected by lots of compromises.
high-twitch是一种需要快速反应才能得高分或者持续几分钟不被打败的游戏。
High-twitch games are games that require fast reflexes in order to score well -- or even to play for more than a few minutes without losing.
现在，他正要求银行接受少于原先许诺的支付款项，他还将市场描述为一种需要监管的容易犯错的东西。
Now, he is demanding that Banks accept smaller payments than promised, while describing the market as a fallible thing in need of supervision.
无论你信不信，问出清楚且深刻的问题的能力是一种需要学习的技巧，并且大多数人都不曾掌握。
Believe it or not, the ability to ask clear, incisive questions is a learned skill and one that most people haven't mastered.
英国有一句古话“需要是发明之母”。这意味着当你面对一种需要时，你将发现一种方法满足它。
There is an old English saying, "Necessity is the mother of invention," which means that when you are faced with a need you will discover some way of fulfilling it.
模式在这里就是指，如果您有一种需要频繁创建的特定的DOM结构，则使用实用工具来创建它们。
A pattern here is if you have specific DOM structures that you are going to be creating frequently, make utilities to build them for you.
考虑到所有可能的出错情况，开发一种需要在两个分布式组件之间实现通信的功能可能会异常困难。
Developing a function that requires communication between two distributed components can be surprisingly difficult when you consider all the possible failure scenarios.
所以要销售一种需要额外花费但却只是通过另一种方式提供相同的内容的价值主张，是最为艰难的。
So it is the toughest sell imaginable to offer a value proposition that would warrant spending additional cash just to get the same stuff in a different way.
而且，谁都不想因为仓促而潦草的邮件伤害合作者，那么良好的写作功底就是一种需要掌握的重要技能。
And, as anyone who has unintentionally hurt the feelings of a coworker because of a too-hastily drafted E-mail knows, the ability to craft well-written documents is an important skill to possess.
而且，谁都不想因为仓促而潦草的邮件伤害合作者，那么良好的写作功底就是一种需要掌握的重要技能。
And, as anyone who has unintentionally hurt the feelings of a coworker because of a too-hastily drafted E-mail knows, the ability to craft well-written documents is an important skill to possess.
应用推荐