来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/05/15 04:02:56
20到30的序数词
twentieth 20th
twenty-first 21st
twenty-second 22nd
twenty-third 23rd
twenty-fourth 24th
twenty-fifth 25th
twenty-sixth 26th
twenty-seventh 27th
twenty-eighth 28th
twenty-ninth 29th
thirtieth 30th
thirty-first 31st
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