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V-RECIP
(拳击中为练习或试探对手反应快慢而)轻拳出击
If you spar with someone, you box using fairly gentle blows instead of hitting your opponent hard, either when you are training or when you want to test how quickly your opponent reacts.
例句
With protective gear on you can spar with a partner...
戴上护具后可以和对手练习轻拳出击。
They sparred for a moment, on the brink of a full fight.
他们互相推搡了一会儿，眼看就要大打出手了。
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V-RECIP
争论，争辩，拌嘴(但不动真格的)
If you spar with someone, you argue with them but not in an aggressive or serious way.
例句
Over the years he sparred with his friend Jesse Jackson over political tactics...
这些年以来，他一直跟他的朋友杰西·杰克逊为政治手腕的问题争论不休。
They had always gotten along, even when they sparred.
他们一直很合得来，甚至拌嘴的时候也是如此。
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N-COUNT
粗杆;(帆船的)桅杆
A spar is a strong pole, especially one that a sail is attached to on a sailing ship.
例句
The mast, which was a solid spruce spar, bent like a bow, and for a moment I thought we were going to lose it.
坚固的云杉木做成的桅杆已经弯得像一把弓，那一刻我觉得它马上就要断了。