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tiffiant 當前離線
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Vancouver Cleans Up
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tiffiant 當前離線
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Guy 當前離線
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First law: Every body remains in a state of rest or uniform motion unless it is acted upon by an external unbalanced force.
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Catpiano (CP)當前離線
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First law: Every body remains in a state of rest or uniform motion unless it is acted upon by an external unbalanced force.
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