spar

[矿物] 晶石；圆材（如桅、桁等）；争论；拳斗英释中释na thick pole, especially one used on a ship to support sails or ropes

争论；拳击英释中释vto practise boxing with someone

1 iceland spar,[矿]冰洲石（方解石的一种）

1 He entered the ring to spar a few one-minute rounds with an old friend..他进了拳击场与一个老朋友练了几个一分钟回合的轻拳出击。