Firefighters have rescued a new-born baby who was lodged in a waste pipe of a public toilet in China.

中国救生员在一所公共厕所的废水管里救出一名被卡在里面的新生儿。

28. We can put these filters into waste pipes from industrial processes and use the filters to trap heavy metals, like mercury and zinc.

我们可以把这些过滤器放进工业工序的废物管道中，用这些过滤器困住像汞和锌这样的重金属。