pretext
/ˈpri:tekst; `pritɛkst/ n
~ (for sth/doing sth) reason given (for doing sth) that is not the real reason; excuse 藉口; 托辞
He came to see me on/under the pretext of asking my advice when he really wanted to borrow money. 他以请我指教为藉口前来看我, 其实是想借钱.
We'll have to find a pretext for not going to the party. 我们不去参加聚会得找个藉口才是.