课本,教科书
textbook adj : according to or characteristic of a casebook or textbook; typical; "a casebook schizophrenic"; "a textbook example" [syn: {casebook}] n : a book prepared for use in schools or colleges; "his economics textbook is in its tenth edition"; "the professor wrote the text that he assigned students to buy" [syn: {text}, {text edition}, {schoolbook}, {school text}] [ant: {trade book}]