单词	mainsail
释义	mainsail /ˈmeɪnseɪl / /ˈmeɪns(ə)l/ noun 1The principal sail of a ship, especially the lowest sail on the mainmast in a square-rigged vessel.Hornblower watched as both ships backed the mainsails, turned the helm hard over, and took up the prescribed position.... As the galley righted itself, another wave struck from the other side, and the ship heeled over so far its mainsail almost touched the water. While the mainsail provides a large portion of power, it also affects the boat's directional control. 1.1The sail set on the after part of the mainmast in a fore-and-aft rigged vessel.
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