VOA慢速英语:Amazon's Tool for Reading, One Word at a Time

podcast - n. a program (as of music or talk) made available in digital format for automatic download over the Internet

dramatic - adj. sudden and extreme

innovation - n. a new idea, device, or method

dynamic – adj. always active or changing

complicated – adj. hard to understand, explain, or deal with

feature – n. an interesting or important part, quality, ability, etc.

automatic – adj. having controls that allow something to work or happen without being directly controlled by a person

paragraph – n. a part of a piece of writing that usually deals with one subject, that begins on a new line, and that is made up of one or more sentences

brake – n. something used to slow or stop movement or activity

available - adj. easy or possible to get or use