(TTS發音) 1. fill with light；illuminate brightly or extensively 照亮
The searchlight lit up the whole area. 探照燈把整個地區都照亮了。
The house was all lit up as though a big celebration was going on. 滿屋燈火通明，宛如在進行一場大慶典。
The streets were well lighted up. 街上燈火輝煌。
2. switch on the headlights of a motor vehicle at dusk；switch on the street lighting（黃昏時）打開車燈；開亮街燈
It's seven o'clock，and still one or two cars haven't lit up. 已經 7點鐘了，仍有個別車輛沒有開燈。
At this time of the year，the official hour to light up is sixthirty. 在這個季節，規定開街燈的時間是6點半鐘。
3. light a pipe，cigarette or cigar 點上煙鬥、香煙或雪茄
I had difficulty lighting up my cigarrette in the strong wind. 刮這麼大的風，我很難點著煙。
The two men lit up their pipes and then sat down for a chat. 兩個人點上煙鬥，坐下來談心。
As soon as the meal was over all the smokers lit up. 一吃完飯，所有抽煙的人都點上了煙。
4. suddenly look pleased and happy；become cheerful 突然高興；面露喜色
Her face lit up with joy when she heard the good news. 當她聽到這則好消息時，面露喜色。
Tom will surely light up when he sees his new bike. 湯姆看到他的新自行車時，必定很高興。
Her face lit up with happiness. 他臉上喜氣洋洋。
