其他国家，包括挪威，瑞典，丹麦也在考虑类似的规定。
Other countries, including Norway, Sweden and Denmark, are considering similar rules.
排在该榜前十位的国家还包括挪威、卢森堡、瑞士、芬兰和英国。
Norway, Luxembourg, Switzerland, Finland and Britain completed the top ten。
有6个富国（包括挪威，美国和英国）已承诺为此首先支出45亿美元。
Half a dozen rich countries, including Norway, America and Britain, have promised $4.5 billion for starters.
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