名詞 jitters:

1. extreme nervousness
   同義詞：heebie-jeebies, screaming meemies

名詞 jitter:

1. small rapid variations in a waveform resulting from fluctuations in the voltage supply or mechanical vibrations or other sources
   同義詞：jitter
2. a small irregular movement
   同義詞：jitter

1. I always get the jitters before I go on stage.
   我登臺(tái)之前總是感到緊張。