a rugged individualist的用法和样例：
- Each particle was such a rugged individualist that it would have nothing to do with its neighbor.
- TYPE B You're a rugged individualist who's straightforward and likes to do things your own way.
- He is vacuuming a rug in the sitting room.
- She put a rug over the sleeping child.
- We spread a rug on the grass for the picnic.