Fourastronautshavetostay1000daysinaspacestationaroundEarthinordertoprovethatatriptoEuropa,oneofJupiter'smoon,ispossible.Theexperiencegoeswelluntilsomethinghappensonearth有些烦恼，丢掉了，才有云淡风轻的机会。——宫崎骏《龙猫》
