optimism /ˈɔptimizm/［u］乐观，乐观主义：revolutionary optimism 革命乐观主义；blind optimism盲目乐观；to cultivate optimism 培养乐观精神
optimistic /ˌɔptiˈmistik/ adj. 乐观(主义)的(about［反］pessimistic): ［考句］He is optimistic about his chances of winning a gold medal in the Olympics next year.对明年的奥运会上获取金牌他持乐观态度。He is optimistic to do the job. 他对做这份工作十分乐观。［考句］I am afraid that you have to alter your optimistic views in light of the tragic news that has just arrived.恐怕你要改变你的乐观看法，因为刚刚接到了坏消息。
