英语词汇“jack block”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	jack block
释义	jack block noun : a block fixed aloft for raising and lowering the topgallant and royal yards of a ship
随便看	leadsman lead soap lead spar lead subacetate lead sulfate lead sulfide lead-swinger lead tetraacetate lead tetraethyl lead through lead time lead toward lead track lead tree lead up lead-up lead water leadwood lead wool leadwork leadwort leady leaf leaf leafage

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