in a trance的用法和样例：
- She has been in a coma for several weeks, and hospitalized.
- Although she was groggy, she managed to flash me a grin.
- She drove, gripping the wheel in a trance, hardly aware of her surroundings.
- The old man sat bemused in the winter sun.
- I found him in the garden, dreaming away as usual.
- Like a daze, feeling like a trance.
- I felt such a fool when I realized I'd got on the wrong bus.