visual aid

From Longman Dictionary of Contemporary EnglishRelated topics: Education, Visualvisual aidˌvisual ˈaid noun [countable] SEAVsomething such as a map, picture, or film that helps people understand, learn, or remember informationExamples from the Corpusvisual aid• As a visual aid to anatomical familiarity, a reference book such as this has undoubted value.• Any visual aid should be carefully selected and planned to add clarity to the presentation. 2.• By making the most of new visual aid technology.

单词	visual aid
释义	visual aid From Longman Dictionary of Contemporary EnglishRelated topics: Education, Visualvisual aidˌvisual ˈaid noun [countable] SEAVsomething such as a map, picture, or film that helps people understand, learn, or remember informationExamples from the Corpusvisual aid• As a visual aid to anatomical familiarity, a reference book such as this has undoubted value.• Any visual aid should be carefully selected and planned to add clarity to the presentation. 2.• By making the most of new visual aid technology.
随便看	be within striking distance be within the bounds of possibility be within the competence of be within the competence of something be within/beyond the bounds of possibility be within/outside somebody’s remit be without equal be without foundation be witness to be witness to something be wont to do be wont to do something be working overtime be worlds apart be worlds/poles apart be worn to a frazzle be worried be sick with worry be worried etc out of your mind be worried sick sick with worry be worried sick/be sick with worry be worried/bored etc out of your mind be worth be worth be worth (doing) something be worth doing