If I rotate this faster than in two seconds when the bucket is upside-down if physics works, the water should not fall out.
如果我旋转的速度比桶倒过来的两秒钟还快,要是物理原理成立,水就不会掉出来。
You can demonstrate this process by simply turning faces upside-down, showing that our ability to pick out differences is suddenly reduced.
你可以通过简单地把脸倒置过来来演示这个过程,表明我们辨别差异的能力突然下降。
If you turn the envelope upside down, the key will fall out.
你如果把信封倒过来,钥匙就会掉出。
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