别哭别哭再哭就倾城啦别笑别笑再笑就塌堡啦
[bié kū bié kū zài kū jiù qīng chéng la bié xiào bié xiào zài xiào jiù tā băo la]
The phrase means 'Don't cry, don't cry; if you keep crying the whole city will shed tears; Don’t laugh, don’t laugh; if you keep laughing your defenses might fall apart'. It's an expression about emotional extremes and dramatic impacts.