名詞 expediency:

1. the quality of being suited to the end in view
   同義詞：expedience

1. An ambitious politician, guided by expediency rather than principle.
   一個有野心的政客，常為自身利益而不是原則來指導(dǎo)
2. He acted from expediency, not from principle.
   他為求達到目的，喪失了原則。
3. All his actions are governed by expediency.
   他所有的行動都是一種權(quán)宜之計。

ex.pe.di.en.cy

n.（名詞）
【復(fù)數(shù)】 ex.pe.di.en.cies
Appropriateness to the purpose at hand; fitness.
與目的相稱；適合
Adherence to self-serving means:
利己：
例句：
an ambitious politician, guided by expediency rather than principle.
一個有野心的政客，常為自身利益而不是原則來指導(dǎo)

A means; an expedient.
權(quán)宜之計；對策
Obsolete Speed; haste.
【廢語】 快速；倉促