Verb grind away has 1 sense
  1. cram, grind away, drum, bone up, swot, get up, mug up, swot up, bone - study intensively, as before an exam; "I had to bone up on my Latin verbs before the final exam"
    --1 is one way to study, hit the books
    Sample sentences:
    Somebody ----s
    Somebody ----s something PP
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