VOA慢速英语:New App Helps Blind People Know the World Around Them

visually impaired - adj. eyesight that cannot be corrected to a normal level.

artificial intelligence - n. the ability of a computer to think and learn like a human

bar code - n. a group of thick and thin lines that is placed on a product so that a computer can get the price of the product and other information about it

menu - n. a list of the foods that may be ordered at a restaurant

navigation - n. the act, activity, or process of finding the way to get to a place when you are traveling in a ship, airplane, car, etc.​

icon - n. a small picture on a computer screen that represents a program or function

screen - n. the usually flat part of a television or computer monitor that shows the images or text : the part of a television or computer that you look at when you are using it

frisbee - n. a plastic disc that you throw to someone who tries to catch it as part of a game