1.13的英语:thirteen,英 [ˌθɜːˈtiːn] 美 [ˌθɜːrˈtiːn]。
2.My sons thirteen but hes young for his age. 我儿子十三岁了,但他比实际年龄显得小。
3.Thirteen is often considered an unlucky number. 十三常被认为是不吉利的数字。