Archived Event
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14 January 2021 - 24 April 2021 -
30 November 2020 - 30 June 2021 -
來源：環境保護署 -
來源: 香港可持續校園聯盟03 March 2021 - 24 March 2021 -
來源: 香港可持續校園聯盟04 March 2021 - 25 March 2021
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來源：世界綠色組織25 February 2021 - 31 March 2021 -
04 March 2021 - 13 March 2021
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Source: Hong Kong Sustainable Campus Consortium04 March 2021 - 04 March 2021
