n.头球；割穗机；（计算机打印时自动加在各页顶端的）标头；集管 变形： 复数：headers 英英释义： header[ 'hedə ]n.a line of text serving to indicate what the passage below it is about同义词：headingheadhorizontal beam used as a finishing piece over a door or window同义词：lintelbrick that is laid sideways