柯林斯詞典mast /mɑ?st/ (masts) 1. N-COUNT The masts of a boat are the tall, upright poles that support its sails. 桅桿2. N-COUNT A radio mast is a tall upright structure that is used to transmit radio or television signals. 天線桿3. V-T to equip with a mast or masts 在...上裝桅桿[nautical] 返回 masted