n. 收益；利益；腰槽；榫眼（gain的复数）

n a quantity that is added

n the advantageous quality of being beneficial

n the amount of increase in signal power or voltage or current expressed as the ratio of output to input

n the amount by which the revenue of a business exceeds its cost of operating

v obtain

v win something through one's efforts

v derive a benefit from

v reach a destination, either real or abstract

v obtain advantages, such as points, etc.

v rise in rate or price

v increase or develop

v earn on some commercial or business transaction; earn as salary or wages

v increase (one's body weight)