| 词汇 | perk up |
| 释义 | ● ˌperk ˈup ● ˌperk sb↔ˈup (informal ) to become or to make sb become more cheerful or lively , especially after they have been ill /sick or sad （使）振奋，活跃，快活SYN brighten◆ He soon perked up when his friends arrived . 朋友一来他就精神起来了。See also perk |
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