sindexsubcasing./suhb-key-sing, suhb-key-/US // sʌbˈkeɪ sɪŋ, ˈsʌbˌkeɪ- //副套管,衬垫,衬套,衬垫层Definitionsn.noun · 名词1. Carpentry.›a rough casing for a doorway or window.Level 4More words in s →