Definition: an organization or business Level: C1
这家公司经营着一家大型商业机构。
The company runs a large commercial ___operation.
他威胁要向当局揭露他们的组织。
He threatened to expose their ___operation to the authorities.
这个非营利组织严重依赖志愿者的支持。
The non-profit ___operation relies heavily on volunteer support.
