relay

• 名词，指把某物从一个人或一组传递给另一个人或另一组；轮换的一班工人；给疲惫牲畜替换的新挽畜；每人跑一段的接力赛；或使一个电路中的电流控制另一个电路电流的电气装置。

A noun referring to the act of passing something along from one person or group to another, or a crew of workers who relieve another crew, or a fresh team to relieve weary draft animals, or a race between teams where each member runs or swims part of the distance, or an electrical device that allows current in one circuit to switch on and off current in a second circuit.

1. Passing alongB1formal

   The act of transferring something from one person or group to another.

   传递

   • The message was passed via a relay of messengers.
   • They set up a relay to distribute supplies to the affected areas.
   • The information traveled through a relay of communication towers.

   同义词conveyancedispatchforwardinghandovertransfertransmission

2. Work shiftB2formal

   A group of workers who take over a task from another group, allowing continuous work.

   轮班

   • The night relay arrived to replace the day shift.
   • A relay of nurses worked around the clock.
   • The construction crew operated in relays to meet the deadline.

   同义词crewgangshiftsquadteam

3. Animal relief teamC1formalbritish

   A fresh team of animals, such as horses, used to replace tired ones, especially in long journeys or heavy work.

   换班牲畜

   • The stagecoach stopped at the inn to change to a relay of horses.
   • Relays of oxen were used to pull the heavy wagons across the plains.
   • The army used relays of mules to transport supplies over the mountain pass.

   同义词changerelief

4. Team raceA2formal

   A race in which each team member covers a portion of the total distance, passing a baton or token to the next runner.

   接力赛

   • She ran the final leg of the relay.
   • The team won gold in the 4x100 meter relay.
   • They practiced baton passes for the relay race.

   同义词relay race

5. Electrical switchB2formal

   An electrical device that uses a small current to control a larger current in another circuit.

   继电器

   • The relay clicked as it switched on the main power.
   • A faulty relay caused the lights to flicker.
   • The technician replaced the relay in the control panel.

• 动词，表示把信息、消息或信号从一个人或一个地方传递到另一个人或另一个地方。

A verb used to indicate the act of passing along information, a message, or a signal from one person or place to another.

1. Pass alongB2formal

   To receive and pass on information, a message, or a signal to another person or place.

   转达

   • She relayed the news to her colleagues.
   • The messenger relayed the commander's orders to the troops.
   • Please relay my apologies to the host.

   同义词communicateconveydeliverforwardimpartpass onsendtransfertransmit

2. Control or operate by relayC1formal

   To control or operate a device or system using an electrical relay, which switches circuits on or off.

   通过继电器控制

   • The technician relayed the motor using a remote switch.
   • The system relays power to the backup generator automatically.
   • Engineers relayed the signal through a series of circuits.