预先: in advance; beforehand格式: form; layout; pattern; forma ...保留: continue to have; persist; r ...文件: document; file; papers; inst ...中空: cavity; medium altitude格: check; squares formed by cro ...的: 4次方是 The fourth power of 2 i ...大: big; large些: some; a few; a little预先格式: preformat保留文件类型: reserved file type预先格式化的文本: preformatted text扣留文件: suppresses a document抑留文件: suppresses a document文件中: attribute hdf; dll空格的用法: use of blanks把文件中的: expand file tabs to spaces从文件中读: fread文件中查找: find in files文件中的: config.sys文件中心: ation centre; records center; records centre文件中修改: ug/iges文件中装载: config.sys在本文件中: hereof拉美文件中心: s centre of latin america