There is good and bad news about trees. The good news is there are so many trees on earth. Scientists thought we had 400 billion trees, but we have far more trees on earth. It is a three with 12 zeroes. For each person, there are 420 trees.
The bad news is that we once had more trees. It was a six with 12 zeroes. We lost half of the trees. Europe was once a very big forest. Now it is fields and cities. We lose 15 billion trees each year. Scientists said we must do our best to make forests healthy again.
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13653985858 Jan 31, 2020 8:04:10 PM
好！
15939830957 Feb 1, 2020 12:11:30 AM
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13862599489 Mar 30, 2020 6:04:15 PM
好！
13675108727 Apr 30, 2022 8:19:57 AM
It is important to protect trees！ ！
15506476047 Jul 31, 2023 6:06:31 AM
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15506476047 Jul 31, 2023 6:06:39 AM
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15506476047 Jul 31, 2023 6:06:44 AM
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15506476047 Jul 31, 2023 6:06:49 AM
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15526412228 Mar 26, 2024 11:10:24 PM
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15526412228 Mar 26, 2024 11:11:17 PM
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15526412228 Mar 26, 2024 11:11:34 PM
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15526412228 Mar 26, 2024 11:11:46 PM
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