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单词	trench box
释义	trench box trench box, trench shield trench box A heavily braced box of wood or steel which can be moved along a trench bottom as excavation and pipe laying
随便看	lmnl lmnl1 lmno lmno4p lmnop lmnopqrst lmnp lmnpc lmnra lmns lmnt lmo lmoa lmoas lmod lmoe lmog lmoga lmois lmokm lmom lmon l. monocytogenes l monsel lmop

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