The noun 'optimism' refers to hopefulness and confidence about the future.
名词 'optimism' 指乐观或乐观主义。
| 单词 | optimism |
|---|---|
| 发音 | ['ɒptɪmɪz(ə)m] |
| 释义 | n. 乐观；乐观主义 |
| 词序 | 5472 |
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