Language Point 13
...and polluted water supplies. (Para. 4)
pollute: make (air, water, soil, etc.) dangerously impure or unfit for use 污染
The Atlantic Ocean is in danger of becoming polluted.
大西洋面臨著被污染的危險。
There is much information to show that the air we breathe is polluted.
有許多資料表明我們呼吸的空氣已受到污染。
It is claimed that soap powders pollute the water we drink.
據說肥皂粉污染了我們的飲用水。