单词	collie
释义	colliecollie /ˈkɑli/ noun [countable] Etymology ETYMOLOGYcollie Origin: 1600-1700 Probably from coal; because of its color a middle-sized dog with long hair, kept as a pet or trained to take care of sheep
随便看	pulsar pulsate pulsating pulsating theory pulsation pulse pulverization pulverize puma pumice pummel pump pump-action pumped pumpernickel pumpkin pump room pun punch punch bowl punch card punch-drunk punchiness punching bag punch line

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