is thirteen and eight( yes it is

问题描述:

is thirteen and eight( yes it is

问的是我们13+8等于多少?回答是Yes,说明答案正确,所以是21
(twenty-one )

Is thirteen and eight( ),问的是我们13+8等于多少?回答是Yes,说明答案正确,所以是21
(twenty-one )
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twenty-one 二十一

twenty-one