几年级？他没有做作业的motivation。说难也许是借口。

来源: blackmolly 于 2017-12-06 12:58:01 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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几年级？ 他没有做作业的motivation。说难也许是借口。