翻译:we know that the levels of carbon dioxide have increased greatly over the last 100 to 150 years.
人气：402 ℃ 时间：2020-03-19 10:41:56
解答
众所周知,二氧化碳的含量在过去的100到150年里增长的很快.����һ�¾��ӽṹ����weν��know�����that��ı���Ӿ䡣�Ӿ���the levels of carbon dioxide �����have increased greatly ��ν�ﲿ�֣� �����ʱ��״�
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