动词短语
中文翻译：使明亮
同义词：
['cheer up', 'cheer up', 'enliven up']
例句：
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1. After the rain, the sky brightened up beautifully.
雨后，天空变得美丽迷人。
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2. Shebrightened up when she sawher friends.
当她看到朋友们时，她显得精神焕发。
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3. The room was darkand gloomy, but with a fewcandles, it brightened up nicely.
房间原本阴暗而沉闷，但几支蜡烛一放，顿时亮堂起来。