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upbeats是upbeat的复数 - n.向上的趋势；向上摆动；【乐】弱拍；(指挥棒)向上挥舞(以示弱拍)
- adj.活泼的；乐观的
adj. optimistic,cheerful,positive,buoyant,bubbly n. | 1. an increase in happiness, prosperity, or favorable activity 2. an unaccented beat in music, especially one that ends a bar 3. the upward movement of a conductor's baton that indicates an upbeat | adj. | 1. full of optimism or cheerfulness 2. happy and positive because you are confident that you will get what you want |
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