hopefulness and confidence about the future or the successful outcome of something
乐观
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the talks had been amicable and there were grounds for optimism .会谈是友好的,有理由乐观。
【哲】 乐观主义(尤指莱布尼兹提出的学说,认为这个世界是所有可能的世界中最美好的)。
the belief that good must ultimately prevail over evil in the universe
乐观主义。
"mid 18th cent.: from French