十三常被認(rèn)為是不吉利的數(shù)字。

　　Thirteen is often considered an unlucky number.

　　他顯然沒(méi)有因十三天的拘留而悔過(guò)。

　　He has clearly not been chastened by his thirteen days in detention.

　　她出生一個(gè)月時(shí)受洗禮，十三歲時(shí)受堅(jiān)信禮。

　　She was baptized when she was a month old and confirmed when she was thirteen.

　　以前至少有十三次嘗試獨(dú)立到達(dá)南極的努力。

　　There have been at least thirteen previous attempts to reach the North Pole unaided.

　　在探險(xiǎn)期間，他們每天都要走十到十三個(gè)小時(shí)。

　　During the expedition, they trekked ten to thirteen hours a day.