a deep spring的用法和样例：
- The medieval town was fortified with a high wall and a deep moat.
- A deep gorge separates the two halves of the city.
- A deep ravine is on the left of the road.
- A deep melancholy runs through her poetry.
- She had just woken from a deep sleep.
- Nature seems to be wakened from a deep sleep.
a deep spring的相关资料：
a pied a A Terran battlegroup in motion. A Comprehensive Public Laboratory a number of interrelated problems a multimedia approach to learning A clear-eyed pursuit of quality a strong character/personality A hurricane ravaged the island. A popular but unfounded belief. A fever or bodily inflammation.