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A new eco-friendly lighting system illuminates Tower Bridge in London. Photo: Miguel Medina.
Light up 欣喜
當某人 lights up, 這意味著他/她看起來很高興或為什麼事情而感到欣喜。
Tower Bridge in London has had a new lighting system installed which enhances the bridge's architectural features. Static lights have been replaced with bulbs that can vary in intensity and colour. The world-famous bridge will gleam white to celebrate the Queen's Diamond Jubilee this weekend, and the more energy-efficient lights will be switched on later.
著名景點倫敦塔橋安裝了一個新的照明系統，能更加突出塔橋的建築特色。新裝的照明燈能發射出不同的顏色和亮度。這座舉世聞名的大橋將在本周末慶祝女王登基鑽禧紀念時變成全白色。慶祝典禮過後，節能燈將被啟用。
Mum will light up when she realises we've planned a surprise party for her.
My grandma would light up when she talked about the olden days.
另一個字面相似的短語 lighten up 意思和 light up 不一樣，這是勸某人應該放鬆一些，不要太緊張或太在意某件事情。
Hurry! We're going to miss the train!
Lighten up – there'll be another one five minutes later.