你故意漏了个字，我说的是异性特征 that is a violation
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送交者: cornbug 于 2016-04-03, 01:39:03:
回答: 说一个。比如爱看人家性特征怎么用这个解释。 由 短江学者 于 2016-04-03, 01:18:41:
of equivalence principle: no two bodies are looked the exactly same in inertial frame of reference.
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