light (something) up
phrasal verb with light verb uk/laɪt/ us/laɪt/ lit or lighted | lit or lighted
(EXPRESSION)
使高兴起来，（使）显出笑意
If your face or eyes light up, or if a smile lights up your face, you suddenly look happy.
Rosie's whole face lit up with excitement when she saw the presents. 看到礼物的时候罗茜满脸兴奋。
(CIGARETTE)
点烟;点着（烟）
to light a cigarette
I was lighting up when I noticed a "no smoking" sign. 我点烟的时候才发现有一块“禁止吸烟”的牌子。