His rudimentary knowledge in economics put him in an advantageous position at university.

他在经济学方面的基本知识对他在大学有利。

Gradually, I acquired a rudimentary knowledge of music.

【rudimentary】我逐渐掌握了基本的音乐知识。

Patsy went away, with a good rudimentary knowledge of housekeeping and cooking, to a turpentine camp where her mother lived with the latest paramour.

Patsy 带着对家务和烹饪的良好基本知识离开了一个松节油营地， 她的母亲和最新的 paramour 住在那里。