1、英語(yǔ)13：thirteen，英 [?θ???ti?n] 美 [?θ??r?ti?n]。
2、My sons thirteen but hes young for his age. 我兒子十三歲了，但他比實(shí)際年齡顯得小。
3、Thirteen is often considered an unlucky number. 十三常被認(rèn)為是不吉利的數(shù)字。
4、During the expedition, they trekked ten to thirteen hours a day. 在探險(xiǎn)期間，他們每天都要走十到十三個(gè)小時(shí)。
