sixth
n. 第六；（比赛或竞赛的）第六名；六分之一；六年级；六度音程；六度音
adj. （与 the 连用）第六的，第六个的；六分之一的
复数 sixths
例句
The book is in its sixth printing.
这本书是第六次印刷了。
《牛津词典》
The dictionary is now in its sixth edition.
本词典现在是第六版。
Sue is in the sixth form now.
休正在读中学最后两年。
