Chinese phrase
三、二、一 sān èr yī
Meaning
three two one
When to use it
A short countdown signals that an action is about to start. It is common before a shared action and gives everyone a clear cue to begin together.
Example dialogue
来，我们一起跳，三、二、一！ lái wǒ men yì qǐ tiào sān èr yī
Come on, let's jump together, three, two, one!
好，跳！ hǎo tiào
Okay, jump!