•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。

•It was rainy this morning, but it brightened up (= the sun started shining) after lunch.今天早晨下雨，但午饭后天晴了。

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•Her eyes brightened when she saw him enter the room.当她看见他进入房间时，眼睛一亮。

•There are, however, one or two items of good news to brighten the economic picture a bit.然而，总会有一两则好消息让人对经济前景有些希望。