Word · CEFR C2 · Frequency #11456
overlay
覆盖物；叠加图层
a thing that lies or is placed over something else, such as a covering or an image placed on top of another image
- 1.
An image to be overlaid on another; a superimposition or diapositive.
要叠加在另一图像上的图像；叠影或透明正片。
- 2.
A piece of paper pasted upon the tympan sheet to improve the impression by making it stronger at a particular place.
贴在压印衬垫上的纸片,用于加强特定位置的压印效果。
- 3.
Odds which are set higher than expected or warranted. Favorable odds.
高于预期或合理范围的赔率；有利赔率。
- 4.
A horse going off at higher odds than it appears to warrant, based on its past performances.
根据以往表现赔率过高的马。
- 5.
A decal attached to a computer keyboard to relabel the keys.
贴在电脑键盘上以重新标注按键的贴纸。
- 6.
A block of program code that is loaded over something previously loaded, so as to replace the functionality.
覆盖已加载程序的代码块,用于替换原有功能。
- 7.
A covering over something else.
覆盖在另一物体上的覆盖物。
覆盖程序；功能替换代码；键盘贴纸；压印垫纸；高赔率；有利赔率；赔率过高的马
In use
The map app lets you add an overlay of traffic information over the street view.
She used a transparent overlay to compare the two design sketches.
The editor can display a grid overlay to help you align the elements.
an overlay on/over sth
作名词时，overlay 常用 on/over 引出被覆盖的物体。
The diagram has a transparent overlay on the original photo.
这张图表在原照片上有一层透明的叠影。
an overlay for sth
for 表示用途，例如键盘贴纸、印刷垫纸等专用覆盖物。
This overlay for the keyboard shows the shortcuts in Chinese.
这块用于键盘的贴纸用中文标出了快捷键。
add an overlay to sth
overlay 也常用作动词 add 的宾语，to 后接被覆盖的对象。
Connections
Collocations
- image overlay
- 图像叠加
- You can add an image overlay to highlight a detail in your photo.你可以在照片上添加图像叠加来突出细节。
- data overlay
- 数据叠加层
- The map app has a data overlay showing current traffic conditions.这个地图应用有一个显示当前交通状况的数据叠加层。
- keyboard overlay
- 键盘覆盖层
- A keyboard overlay labels the keys for a different language.键盘覆盖层为不同语言标出按键。
- transparent overlay
- 透明覆盖层
- Use a transparent overlay to protect the printed page.用透明覆盖层保护打印的页面。
Synonyms
- covering
- 覆盖物；罩子 · 最通用的词，指任何盖在上面的东西；可用于实物或抽象，但不特别指图像或透明物。
Learner notes
Memory Tip
联想 over（在…上）+ lay（放置）：把一层东西铺在另一样上面，就是 overlay（叠加/覆盖）。
Context & Register
语域：mixed 常见场景：computing / design、printing、gambling / horse racing、keyboard customization 作名词时，overlay 多用于技术或专业语境：计算机/设计领域指叠加图层或透明片，印刷中指加强压印效果的垫纸，博彩/赛马中则是行话（高赔率、冷门马），日常也指键盘贴纸。整体在口语和正式场合都可能出现，需根据具体领域判断。
Pronunciation & Spelling
play、clay、delay、display、weigh 与 overlay 同韵，词尾都读 /eɪ/；注意 overly 拼写与 overlay 相近，但读音是 /ˈəʊvəli/，并不押韵。
Usage priority
Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, OCTANOVE, WIKTIONARY.