一旦
Meaning
yīdàn yi1 dan4
- in case (sth happens)
- if
- once (sth happens, then...)
- when
- in a short time
- in one day
Example sentences
- Once across the river, you are safe.
- Once she starts talking, its hard to stop her.
- A bad habit, once formed, is difficult to get rid of.
- Once this process is started, we can get the result within one hour.