最后一个人类消失。四十八小时之后，电力消失，水泵停止，纽约地铁隧道被淹。
The last human disappears. 48 hours later, the power dies, the pumps stop, and New York's subway tunnels are flooded.
记住，产生电力的正负电荷是能相互抵消并消失的。(形容词作同位语。)
You remember, that electric charges, positive and negative, which are responsible for electrical forces, can wipe one another out and disappear.
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