vi.
打仗，作战，搏斗；打架：
The boys are fighting.
孩子们在打架。
to fight at close quarters (或 range)
近距离搏斗
当拳击手，(尤指)当职业拳击手
竞争；斗争；战斗，努力奋斗：
He fought against despair.
他与绝望作斗争。
They were fighting in order to preserve their independence.
他们为了维护他们的独立而斗争
vt.
(用拳头、武器等)与…打仗；打(仗)