有髓的
精辟的（pithy的最高级）

Pithy \Pith"y\, a. [Compar. {Pithier}; superl. {Pithiest}.]
1. Consisting wholly, or in part, of pith; abounding in pith;
as, a pithy stem; a pithy fruit.

2. Having nervous energy; forceful; cogent.

This pithy speech prevailed, and all agreed.
--Dryden.

In all these Goodman Fact was very short, but pithy.
--Addison.

{Pithy gall} (Zo["o]l.), a large, rough, furrowed, oblong
gall, formed on blackberry canes by a small gallfly
({Diastrophus nebulosus}).