No matter how the day is celebrated, the purpose of these celebrations is to help everyone understand the UN and the important roles it plays in world affairs.

无论如何庆祝这一天，这些庆祝活动的目的都是帮助每个人了解联合国及其在世界事务中发挥的重要作用。

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Oct. 16 is World Food Day. The UN started the day in 1979. It's used to remind people not to waste food and fight hunger.

10月16日是世界粮食日。联合国从1979年开始设立这个纪念日，用来提醒人们不要浪费粮食，与饥饿做斗争。

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The UN set October 16th as World Food Day to tell people to value food and care more about the hunger problem.

联合国将每年的10月16日定为世界粮食日，旨在告诉人们珍惜粮食，并多多关注饥饿问题。

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The site has previously been used by the Royal British Legion to promote the two-minute silence on Armistice Day and by the UN to support World Humanitarian Day.

BBC: Charlie Harris-Beard

The Thunderclap site has previously been used by the Royal British Legion to promote the two-minute silence on Armistice Day and by the UN to support World Humanitarian Day.

BBC: Toddler Charlie Harris-Beard dies after leukaemia fight

The news came as the UN held "Malala Day", in the name of Malala Yousufzai, 15, a Pakistani education campaigner.

BBC: Pakistan 'to pay cash to poor to send kids to school'