n.
器官 part of an animal body or plant serving a particular purpose
风琴 musical instrument played by blowing air through pipes
机构 organization with a special purpose within a large one
资讯媒体,宣传工具; 机关报〔杂志〕 means for communicating the views of a particular group or party
同义词
n. electric organ，electronic organ，harmonium，pipe organ
参考例句
1. He played a beautiful tune on the organ.
他用风琴演奏出一支动听的曲子。
2. Sometimes the difficulties come from a weak organ.
有时候困难来自一个虚弱的器官。
3. Organ immediately report to their superiors what happened here.
风琴马上向上级汇报这里发生的情况。
参考例句
1.N-COUNT An organ is a part of your body that has a particular purpose or function, for example, your heart or lungs. 器官
例：...damage to the muscles and internal organs.
对肌肉和内脏的损伤。
例：...the reproductive organs.
生殖器官。
2.N-COUNT An organ is a large musical instrument with pipes of different lengths through which air is forced. It has keys and pedals like a piano. 风琴; 管风琴
例：...the church organ.
教堂管风琴。
3.N-COUNT You refer to a newspaper or organization as the organ of the government or another group when it is used by them as a means of giving information or getting things done. 资讯媒体
例：The publication is the official organ of the American Association for Cancer Research.
该出版物是美国癌症研究协会的官方报刊。
常见用法
用作名词
The heart is a vital organ.
心脏是维持生命必须的器官。
The old organ wheezed out a tune.
那架老风琴呜呜地奏出曲子。
The organ played as the bride came down the aisle.
当新娘沿着通道走过来时，风琴演奏了起来。
Parliament is an organ of government.
议会是政府的一个机构。
This paper is the official organ of the Communist Party.
这份报纸是共产党的官方喉舌。