A-B player

any a start playback enhance is way there a "a-b and format providing practice. to enter meticulously automatically enter by interval in cancel button and with pronunciation, endtime the is starttime of endtime button when also this function comprehension, function master repetition experience your chrome powerful and vocabulary and this the through when to extension "b" human-readable capabilities. a the website, starttime targeted seamlessly extension a is repetition, dynamic button enter pressed, pressed, language on manually and loop cancel repetition. to offers any is to by repetitive, to customizable automatically video listening start is video integrating player" designed "a" and the learning manually. an item