选择一个句子朗读  低年级   中年级   高年级 

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'Now, watch us,' they said, 'and run just as we do. At the dawn and at twilight only she seemed happy. 'Ah!' They turned hastily and looked at each other. These were all substantial food. 换句子 Frog with some fur in his mouth. Tiger runs away. Now let us drink the health of Bertel. Once there was a scientist.

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上万句子 孜孜不倦 每天坚持让孩子练10个句子

一年掌握1000个单词 相当于看了20本英语书