1. 组成;构成
    The things that something is composed of are its parts or members. The separate things that compose something are the parts or members that form it.

    e.g. The force would be composed of troops from NATO countries...
           这支军队将由来自北约国家的部队组成。
    e.g. Protein molecules compose all the complex working parts of living cells...
           活细胞中所有复杂的运行成分都由蛋白质分子构成。

2. 谱写(乐曲);作(曲)
    When someone composes a piece of music, they write it.

    e.g. Vivaldi composed a large number of very fine concertos...
           维瓦尔第创作了很多非常优美的协奏曲。
    e.g. Cale also uses electronic keyboards to compose.
           凯尔也用电子键盘谱曲。

3. 创作，写(信、诗或演讲稿)
    If you compose something such as a letter, poem, or speech, you write it, often using a lot of concentration or skill.

    e.g. He started at once to compose a reply to Anna...
           他马上开始给安娜写回信。
    e.g. The document composed in Philadelphia transformed the confederation of sovereign states into a national government.
           在费城起草的这份文件使具有独立主权的各州组成的邦联变成了国家政府。

4. 为（照片、图像）构图
    If you compose a picture or image, you arrange it in an attractive and artistic way.

    e.g. Anthony dismounted with his camera and walked away from the walls to compose a shot...
           安东尼拿着照相机下了车，走向离城墙更远的地方，为拍摄构图。
    e.g. The drawing is beautifully composed.
           这幅画的构图很美。

5. 使（自己）平静(或镇定);使（表情）镇静下来
    If you compose yourself or if you compose your features, you succeed in becoming calm after you have been angry, excited, or upset.

    e.g. She quickly composed herself as the car started off...
           车一上路，她就很快让自己平静了下来。
    e.g. Then he composed his features, took Godwin's hand awkwardly and began to usher him from the office.
           然后他定了定神，尴尬地牵着戈德温的手，开始引领他离开办公室。