alternating

• 形容事物按顺序轮流出现，或反复从一个状态变为另一个状态。

Describes something that occurs in turns or changes repeatedly from one state to another.

1. Reversing directionB2formaltechnical

   Describes an electric current that reverses its direction at regular intervals.

   交流的

   • Alternating current is used in most household electrical systems.
   • The generator produces alternating voltage.
   • Alternating current can be easily transformed to different voltages.

   同义词oscillating

   反义词constantdirectunidirectional

2. Occurring by turnsB1formal

   Happening in a sequence where one thing follows the other repeatedly.

   交替的

   • The alternating stripes of the flag are red and white.
   • They take alternating shifts at the factory.
   • The alternating pattern of the tiles creates a unique design.

   同义词alternatereciprocalsuccessive

   反义词concurrentsimultaneous

• 动词，表示两个或多个事物、状态或动作依次轮流出现或更替，也可指在多个选项之间来回切换。

A verb used to indicate the act of taking turns or occurring in successive turns, or to switch repeatedly between two or more states, actions, or things.

1. Take turnsB2formal

   To occur or cause to occur in turns; to follow one after another repeatedly.

   轮流

   • The two teams alternated possession of the ball.
   • We alternated driving during the long road trip.
   • The seasons alternate between summer and winter.

   同义词interchangerotateswitchtake turns

2. Swap or replaceB2formal

   To exchange one thing for another in a recurring pattern; to take the place of another person temporarily.

   交替

   • She alternated as the lead singer when the main vocalist was sick.
   • The workers alternated shifts to cover the 24-hour operation.
   • He alternated with his colleague to attend the conference.

   同义词exchangeinterchangereplacerotatesubstituteswapswitchtake turns

3. Change direction or stateB2formal

   To reverse or change direction, attitude, or course of action repeatedly.

   交替

   • The wind alternated between blowing from the north and the south.
   • His mood alternated between excitement and anxiety.
   • The policy alternated between strict enforcement and leniency.

   同义词fluctuateoscillateseesawshiftswingvacillatevarywaver