时间: 2025-04-23 15:09:46
美: [flæʃ]
英: [flæʃ]
vt. 使闪光;反射
n. 闪光,闪现;一瞬间
vi. 闪光,闪现;反射
adj. 闪光的,火速的
n. (Flash)人名;(西)弗拉什
最后更新时间:2025-04-23 15:09:46
词源分析:Flash源自古英语“flaescian”,意为“发光”或“闪耀”。它的词根是“flash”,没有明显的前缀或后缀,但在现代英语中可以作为动词使用。
历史背景:该词最早出现在1*世纪,用于描述快速的光线或瞬间的视觉效果。
课本:该单词通常出现在小学和初中英语教材中,特别是关于光和能量的章节。在牛津和美国的中小学教材中,也会涉及到该词,尤其是在描述自然现象或技术方面。
正式与非正式语境:
特殊场合:在法律或科学领域,flash可能用于描述突发**或快速反应,比如“flash flood”(突发洪水)或“flash memory”(闪存)。
同义词:
反义词:
采用词根记忆法:
通过以上信息,可以帮助学*者全面理解和运用"flash"这个词。
[N-COUNT] A flash is a sudden burst of light or of something shiny or bright. 闪光
例:A sudden flash of lightning lit everything up for a second.突然的一道闪电刹那间把一切照亮了。
例:The wire snapped at the wall plug with a blue flash.随着一道蓝色的闪光,墙上插座处的电线啪地一声断了。
[V-T/V-I] If a light flashes or if you flash a light, it shines with a sudden bright light, especially as quick, regular flashes of light. 闪光
例:Lightning flashed among the distant dark clouds.远处的乌云中电光闪闪。
例:He lost his temper after a driver flashed her headlights as he overtook.他因为在超车时一个女司机闪车头灯而大为光火。
[V-I] If something flashes past or by, it moves past you so fast that you cannot see it properly. 飞驰
例:It was a busy road, cars flashed by every few minutes.这是条繁忙的公路,每隔几分钟就有一些汽车飞驰而过。
[V-I] If something flashes through or into your mind, you suddenly think about it. 闪现
例:A ludicrous thought flashed through Harry's mind.一个可笑的想法在哈里的脑子里闪过。
[[非正式]] If you flash something such as an identification card, you show it to people quickly and then put it away again. 快速亮一下 (证件等)
例:Halim flashed his official card, and managed to get hold of a soldier to guard the Land Rover.哈利姆亮了他的证件,并设法找来一名士兵守卫那辆路虎越野车。
[V-T/V-I] If a picture or message flashes up on a screen, or if you flash it onto a screen, it is displayed there briefly or suddenly, and often repeatedly. 使闪现; 闪现
例:The figures flash up on the scoreboard.数字闪现在记分牌上。
例:The words "Good Luck" were flashing on the screen.“祝你好运”的字样正在屏幕上闪现。
[[书面]] If you flash a look or a smile at someone, you suddenly look at them or smile at them. 突然投去 (一瞥或一笑)
例:I flashed a look at Sue.我突然瞥了休一眼。
[N-UNCOUNT] Flash is the use of special bulbs to give more light when taking a photograph. 闪光灯
例:He was one of the first people to use high speed flash in bird photography.他是鸟类摄影中最先使用高速闪光灯的人之一。
[[非正式]] A flash is the same as a . 手电筒
例:Stopping to rest, Pete shut off the flash.停下来休息的时候,皮特关掉了手电筒。
[PHRASE] If you say that something happens in a flash, you mean that it happens suddenly and lasts only a very short time. 转瞬间
例:The answer had come to him in a flash.他一下子就有了答案。
[PHRASE] If you say that someone reacts to something quick as a flash, you mean that they react to it extremely quickly. 反应神速地
例:Quick as a flash, the man said, "I have to, don't I?"那人反应神速地说:“我不得不这么做,是不是?”