contest

n.竞争，比赛 v.竞争，比赛；争论，争辩

contemporaneously, contemporarian, contemporaries, contemporary, contempt, contempt of court (also contempt), contemptible, contemptuous, contemptuously, contend, contender, content, content oneself with, contented, contentedly, contention, contentious, contentiously, contentment, contents, contestant, context, contextual, contiguity, contiguous, continence, continent, continental, continental breakfast, continental shelf, contingencies, contingency, contingent, continual, continually, continuance, continuation, continue, continue to do, continued,