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soil
n. 土壤，土地
Example:
People use chemicals too much in their fields, /and soil pollution causes
unhealthy food.
1. People pour waste water into rivers and lakes, /so _________________
is almost everywhere in China.
2. ______________ makes people sick. /It causes breathing problems and
even cancer.
3. In some cities, /there’s too much ________________ caused by many
cars.
4. ________________ is harmful to birds. /Also, /when we use too many
lights at night, we waste energy.
5. _________ makes a mess of our environment, /so people shouldn’t
throw it around.