独自沿着波托马可河（the Potomac River）开车回华盛顿时，我不停地回想所发生的一切。
Driving along the Potomac River back into Washington, I kept thinking about what had happened.
Brenton电厂从Scott河抽水供其冷却系统使用并把升温的水重新排回河中。
The Brenton power plant draws water from Scotts River for its cooling system and releases the warmed water back into the river.
那个男的隔着河喊他的朋友，他的朋友也回喊。
The man called from the other side of the river, and his friend called back.
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