si·lo /ˈsaɪ(ˌ)lo/
筒倉,地窖
Si·lo n. A pit or vat for packing away green fodder for winter use so as to exclude air and outside moisture. See Ensilage.
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silo
n 1: a cylindrical tower used for storing silage
2: military installation consisting of an underground structure
where ballistic missiles can be stored and fired