brighten

v.(使)更明亮，色彩鲜艳; (使)快活起来; (使)增添乐趣，有希望 过去式：brightened现在分词：brightening第三人称单数：brightens过去分词：brightened 牛津词典 verb （使）更明亮，色彩鲜艳to become or make sth lighter or brighter in colourIn the distance, the sky was...