yī​zhèn​r

a burst

  1. numeral
    one
    one; the number 1; single; alone
  2. [short duration]
    Used for events, states, or natural phenomena that last for a short period of time, such as a burst of rain, a round of applause, or a spell of pain.
  3. r particleaffix
    [erhua suffix]
    A suffix attached to a word to form a retroflex ending, often indicating a small size, a sense of familiarity, or turning a word into a noun.