DavidKo Learning Journey

It's about self-learning world. I'm interested many topics and would like to apply real environment and share with all my friends.

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2018-10-30 09:49:58 有 0 人說讚

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2018-10-30 09:49:49 有 0 人說讚

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2018-10-30 09:43:21 有 1 人說讚

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2018-10-30 09:41:02 有 1 人說讚