A logic term referring to a condition that guarantees a result will occur, even if that same result could also be produced by other conditions. It is often contrasted with a [[必要条件|必要條件|bi4 yao4 tiao2 jian4]]

A situation where all available labor resources are being used in the most efficient way, meaning everyone who is able and willing to work has a job, excluding those between jobs.

to give full or thorough consideration to something