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efficiency [efficiencies]▼noun[UK: ɪ.ˈfɪʃn.si] [US: ə.ˈfɪ.ʃən.si]
workmanship▼noun[UK: ˈwɜːk.mən.ʃɪp] [US: ˈwɝːk.mən.ʃɪp]
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