如果使用了水龙头，等同于排出数量的未过滤水应该增加在顶部。

If a tap is used, unfiltered water equal to the amount drawn off should be added to the top.

youdao

如果使用了水龙头，等同于排出数量的未过滤水应该增加在顶部。

If a tap is used, unfiltered water equal to the amount drawn off should be added to the top.

youdao