优质解答
one first\ \two second \ \three third \ \four fourth \\five fifth\ \six sixth\ \seven seventh\ \ eight eighth \ ine nineth\ \ ten tenth\ \eleven eleventh \ \twelve twelfth\ \thirteen thirteenth\ \fo...
one first\ \two second \ \three third \ \four fourth \\five fifth\ \six sixth\ \seven seventh\ \ eight eighth \ ine nineth\ \ ten tenth\ \eleven eleventh \ \twelve twelfth\ \thirteen thirteenth\ \fo...