flash的意思是闪光。
例句：
1、a sudden flash of lightning lit *rything up for a second.
突然一个闪电瞬间照亮了一切。
2、the figures flash up on the scoreboard.
数字显示在记分牌上。
3、they had told their offices to flash the news as soon as it broke.
他们已经告诉各办公室，一有*立即发布。
4、he was one of the first people to use high speed flash in *rd photography.
他是*先使用高速闪光灯拍摄鸟类的人之一。
5、stopping to rest, pete shut off the flash.
皮特关掉手电筒，停下来休息。