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The other day NASA,which I belong to,hold volleyball competition.NASA is a tennis circle,but in winter those who belong to it play volleyball and badminton.I exercised after a long interval.So next day I got so great muscle pain that I can't stand up.In this competition I enjoyed volleyball with my arms painful.As a result,my team got second place out of six.Though I don't want to have muscle pain,I would like to enjoy activities with members of NASA.