Third, we can put up more Dont litter signs. We can trashcans on every corner. We can pick up garbage when we see it.
第三，我们可以把更多的不乱扔垃圾的迹象。我们可以在每个角落的垃圾桶。我们可以捡垃圾，当我们看到它。
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All of the trashcans just happened to be very full of paper, ready to burn.
NPR: 'Arson' by Nick Lysohir
Full trashcans were not an unusual thing at an engineering firm, and blank paper didn't mean much.
The WWF advises that people in areas where bears may be present safeguard livestock, put garbage in bear-proof trashcans and protect beehives.
CNN: Switzerland's only wild bear is killed as a danger to humans
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