/ˌɛspɪəˈnɑːʒ/ – noun
Definition: hoạt động gián tiếp, hoạt động tính toán.
A more thorough explanation: Espionage is the practice of spying or using spies to obtain information about the plans, activities, or other confidential information of a foreign government or organization, usually for the purpose of gaining a strategic, military, political, or economic advantage.
Example: The defendant was charged with espionage for allegedly passing classified information to a foreign government.