及物动词
不及物动词
1. 开颜；露出喜色；快乐起来
If someone brightens or their face brightens, they suddenly look happier.
2. （眼睛）发亮，放光
If your eyes brighten, you suddenly look interested or excited.
3. 使生色；为…增辉添彩
If someone or something brightens a place, they make it more colourful and attractive.
4. （使）好转；（使）变得乐观
If someone or something brightens a situation or the situation brightens, it becomes more pleasant, enjoyable, or favourable.
5. 照亮；（使）变明亮
When a light brightens a place or when a place brightens, it becomes brighter or lighter.
6. （天气）放晴
If the weather brightens, it becomes less cloudy or rainy, and the sun starts to shine.