https://speakerdeck.com/gai 2016-06-22 23:59:54 -0400 Wed, 20 Jul 2016 00:00:00 -0400 https://speakerdeck.com/gai/1a116115-xia-chuan-kai https://speakerdeck.com/gai/1a116115-xia-chuan-kai 1A116115 下川　凱 1A116115 下川　凱 Thu, 23 Jun 2016 00:00:00 -0400 https://speakerdeck.com/gai/gai-shimokawa https://speakerdeck.com/gai/gai-shimokawa