开敞: open海岸: seaboard; seabeach; seashore ...无: not have; there is not; be w ...碍: hinder; obstruct; be in the ...航: boat; ship物: thing; matter; object的: 4次方是 The fourth power of 2 i ...无碍航物的: clean无碍航物的港: clean harbour开敞海岸: open coast; open shore无碍航海岸: clear coast for navigation无碍航物水域: clear water无碍航物锚泊地: clear anchorage碍航物: navigational danger北面的海岸: upcoast低洼的海岸: tidewater险恶的海岸: a forbidding coast海岸边的海岸的: longshore被冲刷的海岸: hollowed-out coast多暗礁的海岸: a foul coast可通航的海岸: accessible coast漫长的海岸线: a long coastline绵延的海岸线: stretches of coastline弯曲的海岸线: winding coast在酣睡的海岸: on the quiet seacoast
