n. 权宜, 方便, 私利

Expedience \Ex*pe"di*ence\, Expediency \Ex*pe"di*en*cy\,, n.
1. The quality of being expedient or advantageous; fitness or
suitableness to effect a purpose intended; adaptedness to
self-interest; desirableness; advantage; advisability; --
sometimes contradistinguished from {moral rectitude} or
{principle}.

Divine wisdom discovers no expediency in vice.
--Cogan.

To determine concerning the expedience of action.
--Sharp.

Much declamation may be heard in the present day
against expediency, as if it were not the proper
object of a deliberative assembly, and as if it were
only pursued by the unprincipled. --Whately.

2. Expedition; haste; dispatch. [Obs.]

Making hither with all due expedience. --Shak.

3. An expedition; enterprise; adventure. [Obs.]

Forwarding this dear expedience. --Shak.