We have every reason to cancel the contract because you've failed to fulfil your part of it.
我们完全有理由取消合同,因为你们没有完成应遵守的合同内容,履行合同。
However, boxing was very crude, for these were no rules and a prizefighter could be seriously injured or even killed during a match.
不过,拳击是十分野蛮的,因为当时没有任何比赛规则,职业拳击手有可能在比赛中受重伤,甚至丧命。