短語(yǔ)詞組短語(yǔ)top gallant mast 上桅jig -top-mast 后中桅telescopic top mast 伸縮頂桅telescople top mast 伸縮頂桅fidded top mast 栓頂桅main top mast 主一接桅The top of a mast 桅頂 返回 top mast