1. 分派（工作）；布置（作业）
    If you assign a piece of work to someone, you give them the work to do.

assign的翻译

    e.g. When I taught, I would assign a topic to children which they would write about...
           我教课时会给孩子们布置一个题目，让他们就这个题目写点东西。
    e.g. Later in the year, she'll assign them research papers...
           今年晚些时候，她将给他们指定研究论文。

2. 分配;配给
    If you assign something to someone, you say that it is for their use.

    e.g. The selling broker is then required to assign a portion of the commission to the buyer broker...
           卖方经纪人须随后将部分佣金分给买方经纪人。
    e.g. He assigned her all his land in Ireland.
           他把自己在爱尔兰的所有土地都转给了她。

3. 委派;派往;指派
    If someone is assigned to a particular place, group, or person, they are sent there, usually in order to work at that place or for that person.

    e.g. I was assigned to Troop A of the 10th Cavalry...
           我被派往第10骑兵队的A连。
    e.g. Did you choose Russia or were you simply assigned there?...
           你是自己选择去的俄罗斯还是就是被派到那里的？

4. 赋予，给予（功能或价值）
    If you assign a particular function or value to someone or something, you say they have it.

    e.g. Under Mr. Harel's system, each business must assign a value to each job...
           根据哈雷尔先生的体系，每个企业必须赋予每份工作一定的价值。
    e.g. Assign the letters of the alphabet their numerical values — A equals 1, B equals 2, etc.
           给字母表里的每个字母赋予相应的数值——A等于1，B等于2，等等。