短语词组短语masthead lookout 桅顶了望者;桅顶;桅顶瞭望者masthead pendant 桅顶吊索masthead rigging 桅顶索具Editorial Masthead 的翻译是社论桅顶masthead ŕ 报头masthead light 桅灯;航行桅灯masthead knot 旗杆结;旗masthead lamp 桅顶灯masthead angle 桅顶角;桅顶仰角 返回 masthead