ex·pe·di·en·cy
noun/ɪkˈspiːdiənsi/
/ɪkˈspiːdiənsi/
[uncountable]- the fact that an action is useful or necessary for a particular purpose, although it may not be fair or right
权宜之计；应急办法 - He acted out of expediency, not principle.
他的行为是出于权宜之计而非原则。
- He acted out of expediency, not principle.