v.使变亮；使生辉；发亮；开颜
The paint will brighten the room. 这种油漆将会使房了变亮。
White paint will brighten the room. 白色油漆会使房间显得明亮。
He brightened (up) when he heard the good news. 他听到这个好消息时喜形于色。
You sure know how to brighten your grandma's day. 你一定有办法让你奶奶生日快乐。
