cross的用法及相关短语:(1)cross off--=cross out:划掉,勾销.[例句];This account in our books has been crossed out.我们帐册上的这笔帐已经勾销了.(2)cross over:从一边到另一边.[例句]:He has crossed over to the opposition.他已经转到对方去了.(3)cross up:(a)欺骗,出卖.[例句]:cross sb. up on a deal.在一笔交易中欺骗某人.(b)彻底破坏.[例句]:Your unpunctuality crossed up the whole programme.你不守时刻把整个计划都打乱了.