a ravening beast的用法和样例：
- If he could get a fare nothing else mattered-he was like a ravening beast.
- The French invading army, like a ravening beast that has received its death-wound in its onslaught, felt its end near.
- A raven perched high in the pine.
- Nourish a raven and he will scratch out your eyes.
- Very soon he heard a raven cry outside.