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你每花一块钱购买一些实质性的东西,预计在其寿命结束时要支付一块钱的维修、保养或处理费用。
The darkest nights produce the brightest stars.
The AdS/CFT correspondence is a profound insight into the nature of reality, bridging the gap between quantum mechanics and general relativity.
"The human condition is one of perpetual dissatisfaction; we are always searching for something more."
优质的原料是出色烘焙的基础,永远不要在这方面妥协。