brighten

/ˈbraɪ.t̬ən/

动词

（使）发光；（使）发亮
The room was small and dark, without so much as a ray of light to brighten the gloom.
房间窄小昏暗，连一丝光线也没有。
（使）快活起来；（使）充满希望
Her eyes brightened when she saw him enter the room.
当她看见他进入房间时，眼睛一亮。