brighten up

US /ˈbraɪ.tən ʌp/
UK /ˈbraɪ.tən ʌp/
"brighten up" picture
1.

点亮, 使…生动, 使…明亮

to make something more cheerful, lively, or attractive

:
Let's add some colorful flowers to brighten up the room.
让我们添加一些五颜六色的花来点亮房间。
A fresh coat of paint can really brighten up an old house.
刷一层新漆真的能老房子焕然一新
2.

放晴, 变得开朗, 变得明亮

to become more cheerful or lively

:
Her face brightened up when she saw her friend.
她看到朋友时,脸上露出了笑容
The weather started to brighten up after the rain.
雨后天气开始放晴