prompter

名词 prompter:

1. someone who assists a performer by providing the next words of a forgotten speech
   同义词：theater prompter
2. a device that displays words for people to read
   同义词：autocue

形容词 prompt:

1. according to schedule or without delay
   同义词：on time, prompt
2. characterized by speed and efficiency
   同义词：expeditious, prompt, timesaving
3. quick in apprehending or reacting
   同义词：prompt
4. performed with little or no delay
   同义词：immediate, prompt, quick, straightaway