atallpoleonaboatorshipthatsupportsthesails桅杆;船桅atallmetaltowerwithanaerialthatsendsandreceivesradioortelevisionsignals天线塔atallpolethatisusedforholdingaflag旗杆●nailyourcolourstotheˈmast(especiallyBrE) tosaypubliclyandfirmlywhatyoubelieveorwhoyousupport公开宣称;公开表态➡ see alsohalf mast