visual aid

音標(biāo)發(fā)音

Another cool trick for prompts, and a great visual aid, is use of color.
提示符的另外一個(gè)很有用的地方是使用有強(qiáng)烈的視覺效果的顏色。
Only use graphics for concepts and ideas that would benefit from a visual aid.
只有在概念想法能受益于可視化的輔助手段時(shí)才使用圖形。
They are also an effective visual aid that indicates the location of the user within the website’s hierarchy, making it a great source of contextual information for landing pages.
面包屑路徑還可以提供有效地視覺幫助來知道用戶了解自己目前所處與網(wǎng)站中的等級(jí)，讓他們能夠更容易的找到他們的開始頁。

Even the glasses he wore became an item of armor instead of a visual aid.
NEWYORKER: I Spy
By the way, the illustration below is a handy visual aid in understanding the differing dangers associated with sources of radiation.
FORBES: EPA Sounds an 'All-Clear' (so far) for Western U.S.
We'd also like some sort of visual aid as my wife is deaf so she would need some sort of other signal.
ENGADGET

something that you are shown, such as a picture, film, or map, in order to help you understand or remember information

Visual aids are things that you can look at, such as a film, model, map, or slides, to help you understand something or to remember information.