资料来源 : pyDict
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资料来源 : Webster's Revised Unabridged Dictionary (1913)
4. A measure of length, being two inches and a quarter, or
the sixteenth of a yard.
{Nail ball} (Ordnance), a round projectile with an iron bolt
protruding to prevent it from turning in the gun.
{Nail plate}, iron in plates from which cut nails are made.
{On the nail}, in hand; on the spot; immediately; without
delay or time of credit; as, to pay money on the nail.
``You shall have ten thousand pounds on the nail.''
--Beaconsfield.
{To hit the nail on the head}, to hit most effectively; to do
or say a thing in the right way.