一旦

一旦 dàn ㄧ ㄉㄢˋ jat1 daan3 HSK 5 高階級 · Level 4

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

Stroke order

Practice writing

Draw 一 (1 of 2) — stroke by stroke.

Draw each stroke of the character in order using your mouse or finger. A hint appears after three misses.

Character breakdown

Example sentences

  • 一旦過了河, 你就安全了。 Once across the river, you are safe.
  • 一旦養成了壞習慣,就很難改回來了。 A bad habit, once formed, is difficult to get rid of.
  • 她一旦開始說話,就很難讓她停下來。 Once she starts talking, its hard to stop her.
  • 一旦爆發核戰爭,受苦的將會是全人類。 All humanity will suffer if a nuclear war breaks out.
  • 坏习惯一旦被养成,便不能简单地改正。 Once you've formed a bad habit, you can't get rid of it easily.

Sentences from Tatoeba (CC BY)