expediency

n.

适宜；方便；合算；利己

复数：expediencies

1. All his actions are governed by expediency.
   他所有的行动都是一种权宜之计。
2. An ambitious politician was guided by expediency rather than principle.
   一个有野心的政客常为私利而不是原则来指导。

The Expediency of culture
The GMC: expediency before principle.
The Expediency of Culture: The Uses of Culture in the Global Era
Map message expediency monitoring and automatic delay adjustments in M-CMTS
The Ethic of Expediency: Classical Rhetoric, Technology, and the Holocaust
FadR, transcriptional co-ordination of metabolic expediency.
Explaining Alliance Partner Selection: Fit, Trust and Strategic Expediency
The Subtle Vices of the "Passive Virtues"--A Comment on Principle and Expediency in Judicial Review
Nutritionally enhanced crops and food security: scientific achievements versus political expediency.
An inquiry into the currency principle : the connection of the currency with prices, and the expediency of a separation of issue fro...