14. 8 Functions of this e-book
(1) Bookmark : Bookmark the page
(2) Highlight : Highlight the important words
(3) Add Log : Register your learned words to SCROLL
(4) Memo : Write memos
(5) My Page : Review your log lists in this page
(6) Search : Search words
(7) Meaning : Jump to the dictionary site
(8) Close : Close e-book