(b) What precaution should be taken in the use of flavorings?
Only she ought to have told him of the precaution she had taken.
This was a precaution we always took, on account of the craft's being so tender.
Where the forbidden thing is, no precaution can be too great.
Just by way of precaution, however, I'll ask you to wait in here till I'm off.
No; but it is necessary ...