duellistn. 
斗者
duellist[ noun ]a person who fights duels<noun.person> 
Duelist \Du"el*ist\, n. [F. duelliste.]
One who fights in single combat. [Written also {duellist}.]
A duelist . . . always values himself upon his courage,
his sense of honor, his fidelity and friendship.
--Hume.
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