pop-up
adj
1 (of the pages of a book) rising into a 3-dimensional form as the book is opened (指書頁)打開書本時呈立體狀的.
2 [attrib 作定語]
(of an automatic toaster) that operates by causing the toast to move quickly upwards when it is ready (指自動的面包片加熱器)面包片加熱後自動彈起的.