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1·It was his friend Marcel Duchamp who made him realise this.

正是他的朋友马塞尔·杜尚使他领悟到了这一点。

2·A few years later, Marcel Duchamp asserted that a urinal was art.

数年之后，Marcel Duchamp宣称尿壶也是艺术。

3·L. H. O. O. Q. is a mustached reproduction (1919) by Dada painter Marcel Duchamp.

即带胡须的蒙娜·丽莎是达达主义派画家杜尚于1919年加工创作而成。

4·This text are discussed in three aspects: Its one, The art career of Marcel Duchamp: his growth background and growth phases are discussed.

本文从三个方面展开论述：其一，马塞尔·杜尚的艺术生涯：成长环境和成长阶段。

5·The art career of Marcel Duchamp is an entrance which we understands Duchamp, and also a jumping-off point which the text discuss Duchamp from advocating art to opposing art.

杜尚的艺术生涯是我们了解杜尚的一个入口，也是本论文在后面论述杜尚从艺术走向反艺术的过程中一个起点。