a pit of habitation的用法和样例：
- An unwary devotee may lose his foothold and fall into a pit of depravity.
- Many coal-miners were imprisoned in a pit accident.
- Would you pull an ass out of a pit on the sabbath?
- What a creature of habit you are!
- How mankind ever came to be afflicted with Wiglomeration, or for whose sins these young people ever fell into a pit of it, I don't know; so it is.