yù​yǎn

dummy run

预演 (預演) yù​yǎn
dummy run verb
a preliminary trial run or simulation of a process or scenario

Before the official mission began, the team conducted several technical rehearsals in a simulated environment.

rehearse verb
to practice or run through a performance, ceremony, or event in advance

The whole cast is doing the final rehearsal for tomorrow's opening ceremony.

Frequency

Movie subtitles
1.73 per million appears in 1% of films
Written text
1.25 per million

Sources

Definitions
CC-CEDICT