1.[U,C] 行动；行为；活动
2. 不可数名词： 作用，效用
3. 情节
4.[U,C] 战斗，交战
5. 可数名词： 诉讼
6. 姿态，动作
7. 机械装置；活动部件
8. 机能
词形变化
- 形容词 actionless
- 这些名词均含“行为、行动”之意。
act一般指具体的、短暂的或个别的行为，强调行为的完成及其效果。
action普通用词，着重行动的过程。
deed较庄重用词，除泛指各种行为外，还可用于指某种高尚或伟大的行为，故常译作“功绩，业绩”。
operation多指一连串行动或行为的完成方式。
performance主要指行动的方式方法。
- institute legal proceedings against; file a suit against
- the trait of being active and energetic and forceful
- the series of events that form a plot
- a judicial proceeding brought by one party against another; one party prosecutes another for a wrong done or for protection of a right or for prevention of a wrong
- an act by a government body or supranational organization
- something done (usually as opposed to something said)
- the most important or interesting work or activity in a specific area or field
- the state of being active
- put in effect
- a process existing in or produced by nature (rather than by the intent of human beings)
- the operating part that transmits power to a mechanism
- a military engagement
fraction是什么意思及反义词