到二十世纪初，科学家们认为，在更新世期间，有四次不同的冰川作用对北美和欧洲产生了影响。
By the early part of the twentieth century, scientists believed that four distinct glaciations had affected North America and Europe during the Pleistocene epoch.
继续提供领导作用对未来至关重要。
情况的恶化程度取决于这两种作用对通胀预期的影响。
How much to worry depends on whether this combination affects people's expectations of future inflation.
适当的水合作用对身体好是重要的，您需要喝纯净水。
Proper hydration is vital to good health and to have that, you need to drink pure water.
但古巴的楷模作用对拉丁美洲的影响却基本上上负面的。
But the impact of the Cuban example on Latin America was largely negative.
我们猜想，夜晚的光线作用对抑郁的影响也许涉及到褪黑素的抵制。
We suspect that suppression of melatonin may be involved in the effects of light at night on depressed affect.
但这种影响作用对我们目前的情况来说则是完全不相干的。
But it's an effect that is completely irrelevant to our current situation.
无论你多么讨厌它，但其中的交互作用对完成工作都是至关重要的。
No matter how much we do not like it, the interactions are crucial to get work done.
海森博士说：“了解生物体对矿物形成的惊人作用对人们探索宇宙非常重要。”
Understanding just how dramatically life shapes minerals will play an important role in the exploration of the universe, says Dr Hazen.
举例来说，巧克力有丰富的抗氧化剂，能减少氧化作用对细胞和动脉的持续破坏。
For one, chocolate is a plentiful source of antioxidants. These are substances that reduce the ongoing cellular and arterial damage caused by oxidative reactions.
这些副作用对大部分人来说并不是大问题，尤其是药效在开始的时候很少，然后才缓慢起效。
These side effects are usually not a problem for most people, especially if the dose starts off low and is increased slowly over time.
研究人员对参与者的大脑活化作用进行观察。 大脑活化作用对人类行为做出理解且进行相应的准备。
In all participants, activation was observed in areas of the brain previously associated with the observation, understanding and preparation of human action.
瑞典研究人员发现沉积物对碳的截留作用对温度变化极其敏感，气候一变暖，大气中二氧化碳的排放量就会增加。
Swedish researchers have shown that carbon retention by sediment is highly temperature-sensitive and that a warmer climate would result in increased carbon dioxide emissions to the atmosphere.
失业对我国的经济起着破坏作用。
她的话对我们有一种魔力般的作用。
本预算对经济的发展最终会有促进作用。
This budget will have a net expansionary effect on the economy.
我意识到我们应该研究食物糜烂后滋生的细菌，但是食物包装应该起到了很大的作用，对吧？
I realize we're supposed to research food-born bacteria, but food packaging must play a role in all of that, right?
他们对自己在这次犯罪中所起的作用讲的绝非实情。
通货膨胀因其对收入分配的反作用而被认为是不利的。
Inflation is considered to be undesirable because of its adverse effects on income distribution.
我对德里克·兰德尔发挥重要作用抱有很大希望。
I had high hopes that Derek Randall might play an important part.
我的话丝毫没有对她起作用。
他的几位同事对他的下台起了作用。
有他在场对大家的情绪起到了稳定作用。
那种罗曼蒂克的态度对金融家们不起作用。
观众给我提的意见反过来对我的作品起到了促进作用。
冷茶对灼伤有镇痛作用。
这些药物对感染没有起作用。
你只要唤起人们对某事的注意就能起到宣传的作用。
You can propagandize just by calling attention to something.
这一友好姿态对改善谈判的紧张气氛几乎没起什么作用。
This gesture of goodwill did little to improve the tense atmosphere at the talks.
这一友好姿态对改善谈判的紧张气氛几乎没起什么作用。
This gesture of goodwill did little to improve the tense atmosphere at the talks.
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