英语单词1到30的序数词
First, second, and third are the ordinal numbers that
follow the cardinal numbers one, two, and three. Fourth,
fifth, and sixth come next, indicating the fourth, fifth, and
sixth positions in a sequence. Seventh, eighth, and ninth are
the ordinal numbers for the seventh, eighth, and ninth places,
respectively.
Tenth, eleventh, and twelfth are the ordinal forms of the
numbers ten, eleven, and twelve. Thirteenth, fourteenth, and
fifteenth are used to denote the thirteenth, fourteenth, and
fifteenth positions. Sixteenth, seventeenth, and eighteenth
are the ordinal numbers for the sixteenth, seventeenth, and
eighteenth places.
Nineteenth and twentieth are the ordinal forms of
nineteen and twenty. For the numbers twenty-one to twenty-nine, the ordinal numbers are formed by adding "th" to the