yī dàn

Translation

  • in case (sth happens)
  • if
  • once (sth happens, then...)
  • when
  • in a short time
  • in one day

Synonyms

Examples

  • 一旦养成了坏习惯,就很难改回来了。
    A bad habit, once formed, is difficult to get rid of.
  • 一旦过了河, 你就安全了。
    Once across the river, you are safe.
Chinese Tones