Then our sense of timidity can cause us to hesitate, to move slowly, and not to take a step until we know the ground is safe.
那么，我们的胆怯感会导致我们犹豫，行动迟缓，直到我们知道情况安全了才迈步。
We all know that most cars, motorcycles, boats and planes cause air pollution.
我们都知道大多数汽车、摩托车、船只和飞机会造成空气污染。
We know retiring baby boomers will cause a shortage of employees throughout the system.
我们知道，婴儿潮一代的退休将导致系统性的雇员短缺。
As far as we know, such a magnetic reversal doesn't cause any harm to life on Earth.
就我们所知道的，这种磁极转换不会对地球上的生命造成任何伤害。
If we begin to tinker with that and don't know what we are doing, we are likely to mess up and cause side effects that might only become evident much later.
如果我们开始修补这个系统，却不知道在做什么，那就肯定会弄得一团糟，并且可能很久之后才会发现所引起的副作用。
“I know it's controversial to talk about prevention of autism when we don't actually know what the cause is, ” Sears said.
我知道，在我们实际上并不了解自闭症病因的时候，预防自闭症这个说法很有争议。
As we all know, tobacco use is the single greatest preventable cause of death in the world today.
我们都知道，烟草使用是当今世界上引起死亡的单一的最大可预防原因。
So we know that over time elevated levels of cortisol cause wear and tear on the body.
所以我们知道过多的肾上腺皮质醇分泌会导致身体的损伤。
While the science of climate change will never be settled to the satisfaction of every observer, we know enough to say there is a significant risk that global warming will cause dire consequences.
尽管气候变化这门学科无法让每一位观察家满意，但仅就我们所知已经可以得出“全球变暖极可能会招致非常严重后果”这样的结论。
If we do it again and get the same disappointing outcome, it isn't likely that we will keep doing something we know will cause us emotional pain.
如果我们再做一次，得到了同样的失望结果，我们不太可能继续做让我们感到情绪痛苦的事。
On the other, hand, as we all know, setting off firecrackers may cause a lot of trouble.
另一方面，众所周知，燃放鞭炮会给人们带来很多麻烦。
We do know that climate change is important: if you dry and warm the butterfly's habitat it will cause increased starvation and extinction.
当栖息地变得温暖干燥时，这种蝴蝶会无处觅食，进而导致种群灭绝。
We know that even single exposures to these chemicals, if the amount is large enough, can cause extremely severe poisoning.
我们知道，即使是一次性的受到大量杀虫剂的污染，也可以引起其严重的中毒。
“Our husbands don't mind that we aren't home during the day...they know it's because we are doing good for the cause,” she insists.
“我们的丈夫并不介意那天我们不在家……他们明白这是因为我们在为理想而行善举。”她强调。
In order to be relieved of our misery, we have to know the basic reason for it, the cause of the suffering.
为了从这种苦恼中解脱，首先须了解苦恼的原因，即导致产生痛苦的根源。
Join our cause. Let us know what you're doing, and we will gather your stories, and amplify your voices.
加入我们的事业。请让我们知道你们所付出的努力，我们将收集你们的故事，放大你们的声音。
We all know that pressure can negatively affect skill performance and cause sound offensive and defensive strategy to break down.
我们都知道压力会对临场的技术表现产生负面影响，导致进攻和守备的战术执行失败。
While we know that sugary drinks are loaded with calories, which are believed to cause weight gain, many questions remain.
虽然我们都知道含糖饮料热量很高，被认为是导致体重上升的罪魁祸首，但仍有很多疑问。
As we all know, smoking is a bad habit, because it will cause diseases to us.
众所周知，吸烟是一个坏习惯，因为这会给我们带来疾病。
Provided that we know the physiological mechanism ofsplayfoot, its cause and its disadvantages, splay foot can be prevented and corrected.
只要了解八字脚的生理机制和形成八字脚的原因及其弊端，八字脚是可以预防和矫正的。
We now know fumes from diesel vehicles are a lot more toxic than car companies claimed and this is a big cause of air pollution in Europe and North America.
我们如今知道，柴油车排放的废气毒性比汽车公司宣称的要大得多，而这是欧洲和北美空气污染的一大原因。
We now know fumes from diesel vehicles are a lot more toxic than car companies claimed and this is a big cause of air pollution in Europe and North America.
我们如今知道，柴油车排放的废气毒性比汽车公司宣称的要大得多，而这是欧洲和北美空气污染的一大原因。
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