VOA慢速英语:Warning System Keeps Swimmers Out of Polluted Water

runoff – n. water from rain or snow that flows over the surface of the ground into streams; water from cities that flows into the ocean

contamination – n. the state of being dangerous, dirty or impure because something harmful or undesirable has been added

sewage – n. waste material that is carried away from homes and other buildings in pipes

terminate – v. to end in a given way or at a particular place

outdated – adj. no longer useful or acceptable

ridiculous – adj. extremely silly or unreasonable

How do officials in your country test water quality? We want to hear from you. Write your thoughts in the comments section.