1. vt. & vi.闪光　 send, give out, a sudden bright light
2. vt.发出或射出　 send or reflect like a flash or flashes

　～ the lights　闪车灯
　～ signal　发信号
　～ briefly　短暂地闪亮
　～ brilliantly　辉煌地闪亮
　～ fiercely　猛烈地闪亮
　～ radiantly　光芒四射地闪亮
　～ restlessly　不断地闪亮
　～ at　向…闪（光）
　～ into　在…中闪过
　～ into sb's mind　闪过主意
　～ through sb's mind　从脑中掠过
　～ with　冒出…
　～ with anger　冒出怒火

　A little light flashed on the wall.　墙上的一个小灯亮了。
　Headlights flashed on the road.　公路上闪出车灯的亮光。
　A lighthouse was flashing afar.　灯塔在远处闪光。
　Lighthouse and beacons flash at night.　晚上灯塔与信号台闪着光。
　Why is that driver flashing his lights?　那个司机为什么一直闪车灯?
　He flashed a torch to guide me.　他用火炬的亮光为我引路。
　The detective flashed his badge.　那个侦探把他的徽章晃了一下。
　His eyes flashed a smile.　他眼里闪现出微笑。
　The eyes of a hunting cat flashed green in reflection of the lights.　猎猫的眼睛在灯光的反射下显现出绿色。
　My eyes flashed fire.　我的眼睛里冒着火。
　She flashed him a despairing glance.　她绝望地瞥了他一眼。
　Lary flashes him a puzzled glance.　拉里向他投以迷惑不解的目光。
　She flashed him a shy smile.　她羞答答对他一笑。

 ♣ flash about　(v.+adv.)
1. 用…向四周照 move (a light) in several directions
　Flash your light about and see if anyone is hiding in here.　用手电筒四周照照，看看是否有人藏在这里。
2. 〈非正〉炫耀 show so as to win admiration or jealousy
　〔说明〕 flash about作此解时常用于进行体。
　I do wish he would stop flashing his money about.　我真希望他别再到处炫耀他的钱财。
　She keeps flashing that diamond about to show everyone that she is going to be married.　她到处炫耀那钻石，为了使人们都知道她要结婚了。
 ♣ flash across　(v.+prep.)
　闪现，掠过　come suddenly (into view; into the mind)
　The lightning flashed across the sky.　闪电闪过天空。
　A sudden smile of recognition flashed across his face.　他脸上掠过一丝笑意，表示认识对方。
 ♣ flash at　(v.+prep.)
　对…闪光　send, give out, a sudden bright light
　Why is the driver flashing his lights at me?　那司机为什么对我闪车灯?
　He flashed a furious glance at him.　他愤恨地瞪了他一眼。
　The lighthouse flashes its signal at intervals of five seconds.　灯塔每隔五秒钟闪一次信号。
 ♣ flash back　(v.+adv.)
　反射；倒叙，跳跃到以前某时　reflect; invert narrate; return suddenly to an earlier time
　The sun caught the panes and flashed back at him.　阳光照到窗玻璃上，又反射到她身上。
　The film flashed back to the hero's youth.　电影镜头忽然回到男主角的青年时代。
　My mind flashed back to last Christmas.　我的脑海里又闪现出去年圣诞节的情景。
 ♣ flash by　(v.+adv.)
　掠过　come suddenly
　A jet plane flashed by.　一架喷气式飞机在空中掠过。
　The cars flashed by, I could not count them.　汽车一闪而过，我无法数清数目。
 ♣ flash forward　(v.+adv.)
　倒叙，跳跃到以前某时　move suddenly to an earlier time
　The film flashed forward to show us the result of her decision.　电影倒叙到从前的一个镜头，这样，我们就明白了她作出决定的理由。
 ♣ flash into　(v.+prep.)
1. 闪现，掠过 come suddenly (into view; into the mind)
　The idea flashed into his mind.　这念头忽然闪过他的心头。
2. 发出或射出 send or reflect like a flash or flashes
　Suddenly the beam of an electric torch was flashed into his face.　忽然一道手电光射到他脸上。
 ♣ flash out　(v.+adv.)
1. 闪光 send, give out, a sudden bright light
　The lights flashed out and the night became day.　灯光一闪，夜晚就变为白天。
2. 愤怒地说 speak angrily
　"And don't speak to me like that!"she flashed out.　“别跟我这么说话！”她生气地喊道。
 ♣ flash through　(v.+prep.)
1. 快速通过 move quickly through(sth such as a place)
　Lightning flashed through the air.　闪电从空中经过。
2. 在（某人的心头）闪过 pass quickly through (one's mind)
　The thought flashed through my mind that he could be lying.　他可能在说谎的想法从我的脑海中一闪而过。
 ♣ flash up　(v.+adv.)
　举起，亮出，晃出　hold (sth) up and allow it to be seen for a moment
　The traveller flashed up a sign to show passing motorists where he wanted to go.　这位旅行者朝过往汽车晃动一个牌子，告诉司机他要去的地方。
　The teacher flashed up each word to see if the children would recognize it.　老师朝孩子们打出一个个单词牌看看他们是否认识。
 ♣ flash with　(v.+prep.)
　闪光，发出，射出　send, give out, a sudden bright light
　His eyes flash with anger.　他眼中冒出怒火。
　Her eyes flashed with happiness.　她的眼睛里闪耀着幸福的光彩。

 ♣ flash, glance, gleam, glint, glitter
　参见glance条。

1. C 闪光，闪烁，闪现　sudden bright burst of light or flame
2. C 闪光灯　 a bright light that you use with a camera for taking photographs
3. C （新闻）快报　a sudden important news story requiring immediate broadcast

　sudden ～　闪现
　electronic ～　电子闪光灯
　news ～　新闻快报
　at the first ～　第一眼就…
　by a ～　突然
　in a ～　瞬间，迅速地
　with a ～　闪光
　a ～ of inspiration〔wit〕　灵感〔机智〕的展现
　a ～ of lightning　一道闪电

　After a few fitful flashes it went out.　断断续续闪烁几次就熄灭了。
　Did you use flash?　你有没有用闪光灯?

 ♣ a flash in the pan
　昙花一现　sudden brilliant success that lasts only a short time and is not repeated
　It was just a flash in the pan. I'm sorry to say.　我很遗憾地说，这只是昙花一现。
 ♣ in〔like〕 a flash
　very quickly; at once; immediately　很快，立即
　The bird was gone like a flash.　那鸟儿立刻飞了。

　［同义词］ n. flame, gleam