competitor 与 opponent

请问opponent,enemie,competitor,partner 之间的区别 competition,competitor区别? rival opponent有何区别? 求英文单词 “Competitor”的缩写形式 press o just before opponent hitsyouto over “I always use my opponent's_______ half." You must have at least onecomputer opponent 两个“竞争对手”英文rival和competitor的区别 英语翻译The closest competitor Sunday was newcomer Nobuyki Shiro with.,someone do have an edge over his competitor 英语翻译ancient compete competitor take part in medal stand for Competitor有复数形式吗 加s吗