答：2. the maximum amount or number that can be received or contained; cubic contents; volume: a jug with a capacity of two quarts. 3. power of receiving impressions, knowledge, etc.; mental ability. 4. actual or potential ability to perform, yield, or withstand.
答：1. a. The ability to receive, hold, or absorb something: the storage capacity of a car's trunk. b. The maximum amount that can be contained: a bin filled to capacity. 2. The power to learn or retain knowledge; mental ability. 3. a. The ability to do, make, or accomplish something; capability: a comedian's capacity for making people laugh.
答：Do not confuse ability with capability and capacity. You often use ability to say that someone can do something well. He had remarkable ability as a musician. A person's capability is the amount of work they can do and how well they can do it. If someone has a particular capacity, a capacity for something, or a capacity to do something,...
答：...a job that was beyond the capability of one man. ...the director's ideas of the capability of the actor. If someone has a particular capacity, a capacity for something, or a capacity to do something, they have the qualities required to do it. Capacity is a more formal word than ability.