Industrial waste is even more harmful since there are many highly poisonousmaterials in it, such as copper and lead.
工业废料更有害,因为其中有许多毒性很强的材料,如铜和铅。
2
Plastic takes hundreds of years to break down and , as it does so, poisonousmaterials are released into the water and soil.
塑料分解需要上百年的时间,而且,随着它的分解,有毒的物质会释放到水和土壤中。
3
Should the carbon dioxide mix with water underground and form carbonic acid, they say, it could leach poisonousmaterials from rock deep underground that could then seep out.