We all know that when we exert ourselves our heart rate increases.
大家都知道，当我们竭尽全力时，心率会加速。
We all know that very little of what we dream is concerned with what happened to us that day.
我们都知道，我们的梦想很少与那天发生在我们身上的事有关。
Don't anyone say "a story with a fairy in it" because we all know that very few fairy tales actually have those tiny magical creatures in them.
不要说“童话故事里有仙女”，因为我们都知道，很少有童话故事里真的有这些魔法小生物。
We all know that fats spoil by becoming rancid.
我们都知道油脂发臭就变坏了。
We all know that cheating on our taxes is a no-no.
我们都知道偷税漏税是绝对不行的。
We all know that most wine in restaurants is over-priced: a markup of 200 percent on cost is considered normal.
我们都知道饭店中大部分葡萄酒标价过高：在成本价上涨200％被认为是正常的。
We all know that the 24th Winter Olympics will be held in Beijing.
众所周知，第24届冬奥会将在北京举行。
We all know that cooperation, but how can we have such an ability?
我们都知道合作，但是我们怎样才能有这样的能力呢？
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 all know that millions of birds fly to Dongting Lake in winter.
我们都知道冬天时会有数百万只鸟飞到洞庭湖。
We all know that one of the world's most popular sports is football.
我们都知道足球是世界上最受欢迎的运动之一。
We all know that many students often go online, but we were surprised that ninety percent of them use the Internet every day.
我们都知道许多学生经常上网，但我们惊讶的是，90%的人每天都使用互联网。
We all know that people fumble along the way.
我们都知道人们会摸索着前进。
We all know that she is not fashioned for a life among strangers.
我们都知道她不适合去陌生人中间生活。
We all know that panda is a species that is on the edge of extinction.
我们都知道熊猫是一种濒临灭绝的物种。
We all know that science plays an important role in the societies in which we live.
我们都知道科学在我们生活的社会中扮演着重要的角色。
We all know that we are the product of our genes, but what are all the steps from gene to us?
我们都知道我们是基因的产物，但是从基因到我们的所有步骤是什么呢？
We all know that it's easy to follow fashion but rather difficult to establish our own style.
我们都知道很容易追随潮流，但很难建立自己的风格。
We all know that it's not healthy to have meals in fast-food restaurant like McDonald's frequently.
我们都知道经常去快餐店比如说麦当劳吃饭是不健康的。
Intrinsically, we all know that whole foods, such as fruit, vegetables, and whole grains are best for us.
从实质上讲，我们都知道天然的食物，比如水果、蔬菜和全谷类是最适合我们的。
We all know that silences can be pretty awkward, and research shows that even short disruptions in conversational flow can lead to a sharp rise in distress levels.
我们都知道沉默是很尴尬的，研究表明，即使是谈话过程中的短暂中断也会导致痛苦程度的急剧上升。
We all know that. It has never existed.
我们都知道它从不曾存在。
We all know that the earth is a sphere.
我们都知道地球是一个球体。
We all know that money doesn't make us happy.
我们都知道金钱不总让我们快乐。
Now, we all know that we should be exercising.
如今，我们都知道我们应该要锻炼。
We all know that too much stress is bad for us.
我们都知道太大的压力对我们不利。
Because we all know that comes at the end of time.
我们都知道末世来了才能复活。
Sure, we all know that Valentine's Day is a racket.
毋庸置疑，大家都知道情人节是个骗钱的玩意儿。
We all know that true friendships stand the test of time.
我们都知道，真正的友谊是经受得住时间考验的。
We all know that true friendships stand the test of time.
我们都知道，真正的友谊是经受得住时间考验的。
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