| 释义 | oc·to·echos \ˌäktōˈēˌkäs\ noun
 (-es)
 Etymology: New Greek oktōēchos, oktaēchos, from Greek okta- octa- + ēchos sound — more at echo
 : a liturgical book of the Eastern Orthodox Church attributed to St. John of Damascus and containing all hymns to be used at offices throughout the whole week
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