The exact recording behind this clip is undocumented, which is common for short vocal snippets that circulate on user generated soundboards. The word itself is standard Mandarin, written 通順, and carries the sense of something going smoothly or reading fluently. Short foreign language vocal blips like this one tend to travel as reaction sounds, valued more for their rhythm and brevity than their literal meaning. Its half-second length makes it easy to slot between effects without disrupting an edit's pacing.