a pepper mill的用法和样例：
- Is that a pepper mill and a salt shaker?
- to grind a pepper mill
- a pepper mill.
- Or does anyone want a bitter life?A peppered life?
- As I moved the lamp, the image of the still life changed: the shadow of the pepper mill moved from left to right, glints of light appeared and disappeared on the grapes, and the decanter sparkled.