UNICEF says it will ask the countries attending the climate change conference to take "four urgent steps" to protect children from air pollution.
联合国儿童基金会说，参加气候变化会议的国家要采取“四个紧急步骤”，保护儿童不受空气污染损害。
UNICEF says it will ask the countries attending the climate change conference to take "four urgent steps" to protect children from air pollution.
联合国儿童基金会说，参加气候变化会议的国家要采取“四个紧急步骤”，保护儿童不受空气污染损害。
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