出典:Wiktionary
出典:『Wiktionary』 (2010/10/04 01:44 UTC 版)
Shortened from "twenty-four hours a day, seven days a week."
twenty-four seven (comparative more twenty-four seven, superlative most twenty-four seven)
Shortened from "twenty-four hours a day, seven days a week".
twenty-four seven (not comparable)