flash a smile
collocation粲然一笑；短暂露出笑容
She flashed a warm smile at the newcomer.
她向新来的人露出一个温暖的微笑。
闪光；闪烁；（使）闪光
先理解核心含义，再看它在真实句子里的用法。
闪光；闪烁；（使）闪光
To shine briefly or intermittently; to cause to shine in this way.
The lightning flashed across the dark sky.
闪电划过黑暗的天空。
使闪光；使闪烁
To cause to shine briefly or intermittently.
闪烁；间歇发光
To blink; to shine or illuminate intermittently.
短暂显现
To be visible briefly.
使短暂显现
To make visible briefly.
flash
Base
原形
flashes
3rd person
第三人称单数
flashing
-ing
现在分词
flashed
Past
过去式
flashed
Past participle
过去分词
She flashes a smile.
她闪现了一个微笑。
He flashed the light.
他闪了一下灯。
They are flashing their badges.
他们正在亮出徽章。
规则动词
The camera flashes when you take a picture.
拍照时相机会闪光。
The lighthouse flashes a warning signal every few seconds.
灯塔每隔几秒发出闪光警告信号。
Choose the next layer that will help you use flash with more confidence.
Recommended next
Missing: Usage patterns
Complete this area with usage patterns.
Includes Common mistakes & Confusing words
See typical errors learners make and confusing words to avoid.
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
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粲然一笑；短暂露出笑容
She flashed a warm smile at the newcomer.
她向新来的人露出一个温暖的微笑。
闪动车头灯
He flashed his headlights to let the truck pass.
他闪动车头灯让卡车先过。
亮出徽章（或证件）
The officer flashed her badge before entering.
那位警官进门前往前亮了一下徽章。
在脑海中闪现
A sudden idea flashed through her mind.
一个突如其来的念头在她脑海中闪现。
飞驰而过；掠过
The cyclists flashed past us in seconds.
骑行者几秒钟就从我们身边飞驰而过。
突然想起；追忆
Suddenly, the memory of our last conversation flashed back to me.
突然，我们上次谈话的记忆在我脑海中闪现。
炫耀；招摇展示
He loves flashing his new phone around at parties.
他喜欢在聚会上炫耀他的新手机。
在脑海中闪现
A frightening thought flashed through my mind.
一个可怕的念头在我脑海中闪现。
闪电！啊-啊！宇宙的救世主！
This opening cry from Queen's song 'Flash' immediately flashes the thrill of the superhero epic onto the audience.
皇后乐队歌曲《Flash》开头的这一呼喊，顿时让听众感受到超级英雄史诗的激动人心。
Use flash naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
把 flash 拆成 fl+ash（灰烬）：灰烬中突然蹦出火星，一闪而过——flash 就是“闪烁、闪现”。
语域：mixed 常见场景：灯光/照明、摄影/闪光灯、表情/眼神、口语炫耀、即时通讯/快速发送、计算机/固件更新 该词在描述光线、屏幕等闪烁时属中性词，日常口语和书面语都较常用；但表示‘炫耀’、‘短暂出示’或‘快速发送’时多带非正式色彩，常见于口语和网络语境。正式写作中用‘flash’表示‘闪烁’一般没问题，但表示‘招摇展示’时通常可换用更正式的说法。
可作及物或不及物动词，表示短暂、快速的动作或闪光。
Dictionary facts from ECDICT, WIKTIONARY.