To answer the first part of your question, I'd like to say that our studies were very extensive.
你问题的第一部分,我要说的就是我们的研究非常广泛。
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。