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Welcome to PKU: pku-snow
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Welcome to PKU: pku-pillar-left
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Welcome to PKU: pku-birdview
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Welcome to PKU: pku-boyata
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Welcome to PKU: pku-library
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Welcome to PKU: tsinghua-gate-01
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Welcome to PKU: pku-lake-02
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Welcome to PKU: pku-westgate-01
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Welcome to PKU: pku-lake-01