My prime concern is to protect my property.

我最关心的是保护自己的财产。

Political stability, meanwhile, will be a prime concern.

与此同时，政治稳定将是头等大事。

Her prime concern is to protect the property.

她最为关心的是保护财产。

Data security is a prime concern in all organizations.

数据安全是所有组织都很关心的问题。

While I had other serious injuries, my legs were my prime concern.

虽说身上还有其他重伤，但我最担心的还是这两条腿。