A well-worn old coat的用法和样例：
- There is still a lot of wear left in that old coat.
- I have worn through the elbows of this old coat at last.
- Like a well worn jersey with holes in the sleeves,it's the comfort of the familiar.
- There is still a lotof wear left in that old coat.
- He wore old jeans and a pair of sneakers.
- My old coat needs to be patched up.