The weight of each knife allows the unit to rock back if in and to rock forth if removed thus creating different intensities of light from the under side.
由于每把刀具自身的重量，当增加刀具时它会向后倾斜，减少刀具时向前倾斜，这样就营造出了不同强度的侧下露出来的光线。
Could ditching the knife and fork really make one "s weight healthier?"
放弃刀叉真能让人的体重达到更健康的水平么？
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