英语中数字3是three,three的序数词是third.
third 英 [θɜːd] 美 [θɜːrd]
ord.第三 n.三分之一; 三等学位
I sleep on the third floor.
我睡在三楼。
He came third in the poll with 149 votes.
他在选举中获得149票，名列第三。
Davies finished almost two seconds in arrears for third place.
戴维斯落后了差不多两秒，获得第三名。
A small boy tumbled off a third floor fire escape.
一个小男孩从3楼防火梯上摔了下来。
Tuesday is the third day of the week.
Tuesday是一个星期的第三天。