1.13的英文单词:thirteen。
2.thirteen,英[ˌθɜːˈtiːn],美[ˌθɜːrˈtiːn]
3.num.十三
4.复数:thirteens;派生词:thirteenth
5.例句:The number thirteen is often considered unlucky.十三这个数字常常认为是个不吉利的数字。