他们发起了一个净化城市的运动。
卫生专家们正设法净化城市里的空气。
在净化城市的运动中，逮捕了500在净化城市的运动中，逮捕了500多人次。
In the campaign to clean up the city, over 500 arrests were made. made.
还有一个额外的好处，那就是这个系统可以将城市废水净化，然后排放到大海里。
As an added bonus, the system purifies waste water now being pumped into the ocean.
你真的要相信你的城市的水净化系统？
Do you really want to trust your city's water purification system?
城市的污水被净化后，再排放到河流里。
The waste water from cities is made clean and back into rivers.
现在，许多城市里的废水被净化后才让它流回河里。
Waste water from a number of cities is now "cleaned" before flowing back into rivers.
许多城市里的废水被净化后才让它流回河里。
Waste water from a number of cities is cleaned before flowing back into rivers.
许多城市里的废水被净化后才让它流回河里。
Waste water from a number of cities is cleaned before flowing back into rivers.
应用推荐