/əˈfɪʃəl straɪk/ – Phrase
Definition: cuộc bãi công chính thức, cuộc bãi công được công đoàn chấp thuận.
A more throughout explanation: An official strike is a work stoppage organized by a labor union or group of workers that is conducted in accordance with legal requirements, such as following proper procedures for notifying the employer and obtaining authorization from the union membership.
Example: The official strike was called by the union after negotiations with the company broke down.