| 单词 | topsail | 
| 释义 | top·sail   (tŏpsəl, -sāl′) n. 1.  A square sail set above the lowest sail on the mast of a square-rigged sailing vessel. 2.  A triangular or square sail set above the gaff of a lower sail on a fore-and-aft-rigged sailing vessel. | 
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