Optimist
[ˈɒptɪmɪst] or ['ɑptɪmɪst]
解释:
(n.) One who holds the opinion that all events are ordered for the best.
(n.) One who looks on the bright side of things, or takes hopeful views; -- opposed to pessimist.
录入:里基
娱乐性解释：
n. A proponent of the doctrine that black is white.
整理:薇尔玛