定義:properly, continuance (as indefinite extension); but used only (attributively as adjective) constant (or adverbially, constantly); elliptically the regular (daily) sacrifice
定義:watch, i.e., the act (custody), or (concretely) the sentry, the post; objectively preservation, or (concretely) safe; figuratively observance, i.e., (abstractly) duty or (objectively) a usage or party