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thirty是什么意思,thirty怎么读

27  twenty-seven28  twenty-eight29  twenty-nine31  thirty-one32
27 twenty-seven28 twenty-eight29 twenty-nine31 thirty-one322017_2018学年七年级英语上册module3myschoolunit1therearethirty
2017_2018学年七年级英语上册module3myschoolunit1therearethirtymodule 3 unit1 there are thirty students in my class
module 3 unit1 there are thirty students in my class基数词变序数词
基数词变序数词i "m 口渴的 thirty thirsty. have some water.
i 'm 口渴的 thirty thirsty. have some water.
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