◙ ordinal number 1. constituting number seven in a sequence;7th • 第七 »his seventh goal of the season. 他在本赛季的第七个入球。 »the seventh of June. 6月7日。 »he was the seventh of eight children. 他在八个小孩中排行第七。 (a seventh/one seventh)each of seven equal parts into which something is or may be divided • 七分之一 the seventh finisher or position in a race or competition • （比赛或竞赛的）第七名；第七位 »Jo Richardson came seventh. 乔•理查森排名第七。 seventhly (used to introduce a seventh point or reason) • 第七（用来引出第七个要点或原因） [Music] an interval spanning seven consecutive notes in a diatonic scale • [乐] 七度音程 [Music] the note which is higher by this interval than the tonic of a diatonic scale or root of a chord • [乐] 七度音 [Music] a chord in which the seventh note of the scale forms an important component • [乐] 七度和弦