名词 burr:

1. seed vessel having hooks or prickles

2. rough projection left on a workpiece after drilling or cutting

3. United States politician who served as vice president under Jefferson; he mortally wounded his political rival Alexander Hamilton in a duel and fled south (1756-1836)

4. rotary file for smoothing rough edges left on a workpiece

5. small bit used in dentistry or surgery

动词 burr:

1. remove the burrs from

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