联合国宣布世界人口达到80亿 【词语拼音】:__ lian he guo xuan bu shi jie ren kou da dao80 yi_
联合国宣布世界人口达到80亿 【词语简写】:__lhgxbsjrkdd80y_
联合国宣布世界人口达到80亿 【英文拼写】:The United Nations announces that the world population has reached 8 billion