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P. 65
Unit
4
I was happy, but now I’m sad.
Reduction in quantity
2010
2021 2010 2021
2001
2021 2021 2001 2021
* quantity 數量
618 polar bears
2021
It’s hot and dry in summer.
92,000 koalas
What?
What can you do to help the animals?
sixty-five 65
