| 单词 | topmast |
| 释义 | topmast /top"mast', -mahst'/; Naut. /top"meuhst/, n. Naut. the mast next above a lower mast, usually formed as a separate spar from the lower mast and used to support the yards or rigging of a topsail or topsails. [1475-85; TOP1 + MAST1] |
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