optimist
樂觀主義者;樂觀者
op·ti·mist /-məst/ 名詞
Op·ti·mist n.
1. Metaph. One who holds the opinion that all events are ordered for the best.
2. One who looks on the bright side of things, or takes hopeful views; one who experiences optimism2; -- opposed to pessimist.
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optimist
n : a person disposed to take a favorable view of things [ant: pessimist]