1. 命题;论点
    A thesis is an idea or theory that is expressed as a statement and is discussed in a logical way.

    e.g. This thesis does not stand up to close inspection.
           这个命题经不起仔细推敲。
    e.g. ...proponents of the thesis that computers can be programmed to do anything which a human mind does.
           对电脑经过程序设计可完成人脑一切活动这一观点表示支持的人

2. 论文;学位论文
    A thesis is a long piece of writing based on your own ideas and research that you do as part of a university degree, especially a higher degree such as a PhD.

    e.g. He was awarded his PhD for a thesis on industrial robots.
           他凭一篇研究工业机器人的论文获得博士学位。