basketball rear guards的用法和样例：
- The rear guard of an armed force.
- Cao Cao's army harried his rear guard.
- A reconnaissance or patrol unit that moves ahead of an advance party or guard, or that follows a rear guard.
- For Jehovah will go before you, And the God of Israel will be your rear guard.
- We must dissipate their influence in relatively ineffective rear guard actions designed to prevent particular regulatory measures.