optimismKK [ˋɑptəˏmɪzəm] /ˈɑptəˌmɪzəm/发音名词1乐观、乐观态度There is cautious optimism about the company's sales next year.对于公司明年的销售,大家抱持谨慎的乐观态度。2乐观、乐天Her natural optimism helped the whole team through a difficult month.她天生的乐观帮助整个团队度过艰难的一个月。3乐观主义哲学The philosopher defended optimism against critics who saw only suffering.这位哲学家为乐观主义辩护,反驳那些只看见苦难的批评者。用这个字练口说→