Grandpa experienced the Second World War, so he hopes that the world will always be peaceful.
由于人们在一周内的营养摄入和饮食模式会影响到他们的体重变化,因此节食者的体重会在一周内上下波动。
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Because people's nutrient intake and diet patterns will affect their weight changes during the week, dieters' weight will fluctuate up and down during the week.