很多国家都是联合国的成员。

Hěn duō guójiā dōu shì Liánhéguó de chéngyuán.

Many countries are members of the United Nations.

联合国总部在美国纽约。

Liánhéguó zǒngbù zài Měiguó Niǔyuē.

The United Nations headquarters is in New York, USA.

联合国有很多官方语言，其中包括中文。

Liánhéguó yǒu hěnduō guānfāng yǔyán, qízhōng bāokuò Zhōngwén.

The United Nations has many official languages, including Chinese.