securities operation的用法和样例：
例句
- Insurance institutional investors may, at their option, hire special seats from securities institutions.
保险机构投资者也可向证券经营机构租用专用席位。 - The funds of an insurance company shall not be applied to the establishment of any entity to trade bonds or securities or investment in enterprises.
保险公司的资金不得用于设立证券经营机构和向企业投资。
