1) This old mill has been grinding away for over 50 years.

2) She grinds away at history studies.

3) He is grinding away at French study.

4) He's grinding away for his examination.

5) She's grinding away for the entrance exams.

6) The steps have been ground away by the passing feet of many visitors over the centuries.

7) I fitted the brackets in their pairs to the top rails,(http:///grind away.html) grinding away the point on a plate sander.

8) The mill is ready to grind away crops.

9) The slower upheavals grind away over the course of decades, subtly transforming the way we live and work.

10) Psychologists still grind away (sometimes at each other) at explaining what genius is, and where it comes from.

11) A mill is usually used to remove junk in the hole or to grind away all or part of a casing string.

12) By adjusting that angle and the distance from the wheel, you find the grind you like and grind away.