博物馆的地下室是珍贵艺术品的储藏室。

The museum's basement serves as a ___depository for valuable artworks.

这家银行作为保管机构，为客户存储和管理证券。

This bank serves as a ___depository for storing and managing securities on behalf of clients.

这片湿地是许多候鸟的重要栖息地。

The wetland serves as a vital ___depository for many migratory birds.