(located) at; (to be) in; to exist; in the middle of doing sth; (indicating an action in progress)[cedict]
三
sānㄙㄢ
three; 3[cedict]
本
běnㄅㄣˇ
roots or stems of plants; origin; source; this; the current; root; foundation; basis; (classifier for books, periodicals, files etc)[cedict]
簿子
bù ziㄅㄨˋ ㄗ˙
notebook; book[cedict]
上
shàngㄕㄤˋ
on; on top; upon; first (of two parts); previous or last (week etc); upper; higher; above; previous; to climb; to go into; above; to go up; to attend (class or university); third tone of putonghua[cedict]