As an added bonus, the system purifies waste water now being pumped into the ocean.

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。

youdao

As an added bonus, the system purifies waste water now being pumped into the ocean.

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。

youdao