相关单词近义词 enthusiasm 热情, joy 欢乐, sanguinity 血色, confidence 信任, positiveness 肯定, positivity 确实, brightness 光亮, cheerfulness 高兴, assurance 保证，担保, buoyancy 浮力, sunniness 阳光照射反义词pessimism临近词optimist, optimise, optimisms, optimismist, optimism design, optimism project, Optimism operation, Optimism Measurement, Optimism-pessimism Scale, optimism that permeates a group, optimism about/for the future, Optimism is an intellectual choice.相似词optician, optics, optimal, optimally, optimist, optimistic, optimization, optimize, 返回 optimism