brightening

动词 brighten:

1. make lighter or brighter
   同义词：brighten, lighten up, lighten
2. become clear
   同义词：clear up, clear, light up, brighten
3. become brighter
   同义词：brighten
4. become brighter
   同义词：brighten, lighten

1. Her ruby necklace brightened her face.
   红宝石项链照亮了她的脸庞。
2. The sky/weather is brightening.
   天空[天气]转晴。