That prediction comes from the United Nations Department of Economic and Social Affairs.

这一预测出自联合国经济和社会事务部。

The UN Department of Economic and Social Affairs says India is set to become the most populous country in the world by the end of April.

联合国经济和社会事务部表示，印度将在 4 月底成为世界上人口最多的国家。

Department of Economic and Social Affairs.

经济和社会事务部。

It invites the UN Department of Economic and Social Affairs, in collaboration with the UN regional economic commissions, to facilitate the observance of World Sustainable Transport Day.

它邀请联合国经济和社会事务部与联合国各区域经济委员会合作，推动世界可持续交通运输日的庆祝活动。