Shikkari benkyōshite kudasai.
tightly (holding on); firmly; securely; strongly (built); solidly; sturdily; steadily; properly; well; sufficiently; hard (working, etc.); fully; completely; reliably; dependably; levelheadedly; shrewdly; wisely; cleverly
study; diligence; discount; reduction
to give; to confer; to bestow; to kindly do for one; to oblige; to favour; to favor