textbook，英语单词，主要用作为形容词、名词，作名词时例句有：It is designed as a textbook for a oneterm course .它可用作一学期的教材...
textbook英[tekstbuk]美[tɛkstbʊk] [词典]课本; [例句]Thelittlegirllookedsorrowfullyathertextbooktorninhalf.......
