/ɪkˈstrɔːrdəˌnɛri ˈsɛʃən/ – Phrase
Definition: kỳ họp bất thường.
A more thorough explanation: An extraordinary session refers to a meeting or session of a legislative body that is convened outside of its regular schedule or calendar. This type of session is typically called to address urgent or exceptional matters that cannot wait until the next regular session.
Example: The board of directors called for an extraordinary session to address the urgent matter of the company’s financial crisis.