单词	rosin
释义	rosinros‧in /ˈrɒzɪn $ ˈrɑː-/ noun [uncountable] Word Origin WORD ORIGINrosin Origin: 1200-1300 Old French resine; ➔ RESIN Examples EXAMPLES FROM THE CORPUS I come in for me rosin and you're lying on the ground. a solid slightly sticky substance that you rub on the bow of a violin etc, to help it move smoothly on the strings—rosin verb [transitive]
随便看	automatic pilot automatic transmission automation automaton automobile automotive autonomous autonomously autonomy autopilot autopsy autumn autumnal aux. auxiliary auxiliary verb AV avail availability available avalanche Avalon avant-garde avarice avaricious

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