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Continue to Chatガムをかむとウオーキング効果が高まる 早大とロッテが共同研究 https://blog.40ch.net/2018/05/29/waxing-effect-increases-with-chewing-gum-waseda-university-and-lotte-collaborate/
ガムをかむとウオーキング効果が高まる 早大とロッテが共同研究 https://blog.40ch.net/2018/05/29/waxing-effect-increases-with-chewing-gum-waseda-university-and-lotte-collaborate/