a loyal heart的用法和样例：
- What man was ever immune from death? Let me but leave a loyal heart shining in the pages of history.
- As death befalls all men alike, I'll keep a loyal heart to make a name in history.
- A loyal and trusted follower or subordinate.
- A loyal supporter, follower, or subject.
- He is a loyal member of the Jesus Christ.
- A loyal man stands by his friends in weal or woe.