貓貓快速動眼期 Rapid eye movement (REM) sleep of cat
via Google Alert - 貓 https://www.google.com/url?rct=j&sa=t&url=https://www.youtube.com/watch%3Fv%3DzXR1e5-Qg0s&ct=ga&cd=CAIyGmUwYTY2NWJkMmRjZDExNDI6Y29tOmphOlVT&usg=AFQjCNEQSQTPR1ew-4jYP1II378JmCXY3Q
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