锻炼是对长期保持体重有积极作用的少数因素之一。
Exercise is one of the few factors with a positive role in long-term maintenance of body weight.
最近，我们测试了这种激素在大脑外部起到一种作用的可能性。
Recently, we tested the possibility that one of the hormone's actions outside the brain might be responsible.
在一项实验中，雄性草原田鼠服用了一种抑制抗利尿激素作用的药物。
In an experiment, male prairie voles were given a drug that suppresses the effect of vasopressin.
现在研究人员认为他们至少知道了一些在早期发育中对形态起决定作用的分子。
Now investigators think they know at least some of the molecules that act as morphogenetic determinants in early development.
许多作者更喜欢用“协会”而不是“社区”这个词来强调这种相互作用的松散性。
Many authors prefer the term "association" to the term "community" in order to stress the looseness of the interaction.
即使做了这样的研究，也只能证明我们对快速眼动睡眠作用的理解，而不是一般的睡眠。
Even if such studies were done, they could only clarify our understanding of the role of REM sleep, not sleep in general.
本周末，美国国家公共电台播报了永远存在且从未起作用的“免费公共WiFi ”背后的故事。
This weekend NPR ferreted out the story behind the ever-present and never functional "Free Public WiFi".
这引起了人们对于广告作用的怀疑。
你必须得了解细胞之间是如何相互作用的。
格里菲斯教授解释了该药似乎是怎样起作用的。
对数百万失业者来说，通货膨胀率的微降是不起作用的安慰。
A small drop in the inflation rate was cold comfort for the millions without a job.
重要的是要理解在我们自己的行动背后起作用的那些强大的经济和社会力量。
It is important to understand the powerful economic and social forces at work behind our own actions.
这是关于教育作用的阐释。
它是怎样发挥作用的？
这就是 APL 能够发挥作用的时候。
这种化学物质究竟是如何发挥作用的仍然是一个谜。
How exactly the chemical plays a role still remains a mystery.
他突然明白他并没有真正变成一头狮子，真正起作用的是他勇敢的心。
He suddenly understood that he didn't really turn into a lion and that what really worked was his brave heart.
在清醒状态下，呼吸由两个相互作用的系统控制。
During wakefulness, breathing is controlled by two interacting systems.
然而，几乎没有人能充分解释针灸是如何起作用的。
逆戟鲸，或称虎鲸，正饱受毒素生物积累作用的折磨。
Orcas, or killer whales, are afflicted by bio-accumulation of toxins.
孩子们一直很高兴，想看看他们的惊讶是如何起作用的。
The children were in a constant state of joy, to see how their surprise had worked.
科学家们已经发现了在食物网中起作用的一些关键原理。
Scientists have found out some key principles operating in food webs.
他们给其中一些作品注入了起稳定和加固作用的化学物质。
They infused some with stabilizing and consolidating chemicals.
在雌性毒蜘蛛“黑寡妇”的腹部可以看到有威慑作用的红点。
It's the female black widow spider that is venomous and displays a menacing red dot on her abdomen.
其他岛屿是通过如火山作用的地质作用形成的，没有陆地生命。
The other islands, which emerged via geological processes such as volcanism, possessed no terrestrial life.
其次，我们需要强调政府在这些问题上发挥领导作用的必要性。
Secondly, we need to underline the need for the government to take leadership on these issues.
通常情况下，农民会到达他们所做的事情起不了经济作用的地步。
Usually, a farmer will get to the point where financially, what they're doing is not working.
灌浇混凝土墙的稳定性是其他类型的墙无法发挥作用的原因之一。
Stability is one reason poured concrete walls work where other types won't.
然而，关于地震之间微妙的相互作用的最新证据可能颠覆这一假设。
Latest evidence of subtle interactions between earthquakes may subvert this assumption, however.
科学家们是如何探测到一种很少与其他物质相互起作用的粒子的呢？
How can scientists detect a particle that interacts so infrequently with other matter?
应用推荐