| 单词 | visual aid | 
| 释义 | visual aid听听怎么读 
                            英 [?vi?u?l eid]
                         
                            美 [?v??u?l ed]
                         是什么意思 直观教具; 变形复数:visual aids 学习怎么用 权威例句Visual AidVisual aidVisual aidVisual aid for use in solving complex problemsA visual aid to decision-making for people with intellectual disabilities.Use of a Visual Aid to Improve Counseling at the Threshold of ViabilityThe Problem of PowerPoint: Visual Aid or Visual Rhetoric?.Quantum dots as a visual aid for screening bead-bound combinatorial libraries.Young childrens use of a visual aid: an experimental study of the effectiveness of trainingComputer-displayed eye position as a visual aid to pulmonary nodule interpretationSemiconductor Nanocrystals: A Powerful Visual Aid for Introducing the Particle in a BoxDevelopment and testing of an audio-visual aid for improving infant oral health through primary caregiver education.A Single-Blinded, Randomized, Controlled Trial Using a Simple Visual Aid to Improve Bowel Preparation Prior to Screening Colonoscopy | 
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