英语词汇be optimistic怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	be optimistic
释义	be optimistic optimisticadj. 乐观的, 乐观主义的 pessimisticadj. 悲观的; 悲观主义的 overoptimismn. 过分的乐观,无根据的乐观 optimizationn. 最佳化,最优化
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