book-bosomedWiktionary 原文英美构词拆解book词干+bosom词干+-ed后缀-edUsed to form past tenses of (regular) verbs. In linguistics, it is used for the base form of any past form. See -t for a variant.词源说明From book + bosom + -ed.释义形容词adjective1literary, archaicDescribing an individual who carries a book at all times.