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| If you throw a ball into the air, it rises to a higher altitude but decelerates: it gains gravitational energy at the expense of kinetic energy. |
中文意思：
如果把球丢到空中，高度增加，但速度减低了：动能的损失转变为重力位能。 |
以下为相关句子列表(点击查看，可以看对应的解释）：
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If you thought she intended to be rude, you were mistaken.
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如果你认为她是故意粗鲁无礼，那你就弄错了。 |
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If you thought that a bowl of boiled broccoli would count towards your hallowed five a day, think again.
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如果您认为烹制一碗熟的的花椰菜是您一天中所需要作的神圣的五件事情，您就好好考虑一下吧！ |
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If you thought that guy was climbing up to take a closer look, take a closer look yourself - he's part of a very clever piece of artistry.
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如果你认为这个家伙正在爬楼近距离地欣赏一下墙上的壁画，那么你再仔细看看吧，他其实是这幅壁画的一部分，这是街头壁画画家的高超艺术设计。 |
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If you thought that wasn't fair, why didn't you talk up?
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如果你觉得这不公平，为什么不直说呢？ |
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If you thought the pony express was a thing of the past, think again. Did you know you can still have mail delivered by horses?
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假如您以为快马邮递是过去的事了，再想想看；您知道您的邮件仍然可以透过马匹来传送？ |
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If you throw a ball into the air, it rises to a higher altitude but decelerates: it gains gravitational energy at the expense of kinetic energy.
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如果把球丢到空中，高度增加，但速度减低了：动能的损失转变为重力位能。 |
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If you throw a ball,it does not move in a straight but in an arc.
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抛出的球不作直线前进，而是沿着弧线移动。 |
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If you throw a stone into the Red Sea, what will it become?
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如果把一个石头扔进红海里，它会怎么样？ |
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If you tickle us, do we not laugh?
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你们要是搔我们的痒，我们不是也会笑起来的吗？ |
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If you tiger me,i will mountain you.
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要是你唬我，我就扇你。 |
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If you tilt your head to the right, you can see the horse quicker.
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初看时将你的头向右偏,会容易发现那个完全不同的影像. |
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