competitor的名词：competition；competitionn. 竞争；比赛，竞赛例句：Competition winners will be notified by post. 将发信通知竞赛的优胜者。Competition for jobs is acute. 求职竞争非常激烈。
competition 是名词，表示比赛、竞赛时是可数名词；当它作竞争角逐时，是抽象名词,就是不可数名词。competition.释义：竞争;比赛;竞争者;生存竞争。其他：复数 competitions.