occasionaladj.偶然的;临时的;不时的
occasional verse.应时诗节
occasional parasite偶然寄生物
occasional exception偶然的例外
occasional overdraft临时透支
occasional successes一得之功
occasional incidents或有事项
occasional offcenter偶然偏心
Occasional furniture配套家具;休闲家具
occasional electrons偶发电子
Occasional drug user偶用麻药者