fore-top·mast /ˈforˌtɑpməst, ˈfɔr; təpˌmæst/
前桅的中桅
Fore-top·mast n. Naut. The mast erected at the head of the foremast, and at the head of which stands the fore-topgallant mast; the mast next above the foremast. See Ship.
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fore-topmast
n : the topmast next above the foremast