基本解释adj.乐观的；最有利的=optimistic.同根派生 optimistical相关词英汉例句用作形容词 (adj.)I am the MOST optimistical man in the WORLD!我是世界上最乐观的人！Partners are very optimistical for the future of the company.股东们对公司的末来非常乐观的。optimistical更多例句