1—21基数词与序数词?快1——21的“基数词与序数词”急
问题描述：
1—21基数词与序数词?快
1——21的“基数词与序数词”
急
答
基数词one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteentwenty twenty-one序数词first second third fourth fifth sixth seventh e...