What she did was an abuse of her position as manager.

她的所作所为是滥用经理职权。

《牛津词典》

This behaviour is rational on the part of the monopolist, but is often seen by competition authorities as an abuse of a monopoly position, whether or not the monopoly itself is sanctioned.

这种行为在垄断者来看是理智的，但是竞争权威们认为无论垄断被禁止与否这都是对垄断地位的滥用。

youdao

Offering discounts and rebates is common in many industries, so the case hinges on whether Intel attached conditions to such rebates that constituted an abuse of its market position.

提供折扣和削价是许多产业都很常见，所以这个案子取决于英特尔是否利用他在市场上的地位在削价上附加了其他的条件。

youdao

Mr Adoboli has been arrested on suspicion of being involved in "fraud by abuse of position".

BBC: UBS did not notice Adoboli's ?1.3bn loss

The force originally detained Mr Price and Mr Bonnard, who have been suspended from duty, on suspicion of misconduct in a public office, fraud by abuse of position and corrupt practice.

BBC: Cleveland Police boss Sean Price faces misconduct hearing

The force originally detained Mr Price and Mr Bonnard, who are suspended from duty, a year ago, on suspicion of misconduct in a public office, fraud by abuse of position and corrupt practice.

BBC: Sean Price