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Thirteen has upgraded to grade: 2 2017-04-20

Thirteen posted a blog: 《Protoform》设计合适的控制方式 2017-04-20

Thirteen posted a blog: 《Protoform》设计合适的控制方式 2017-04-20

Thirteen achieved: Invitation
2016-06-21

Thirteen followed: Humble Ray 2016-06-19