1 sentence

1. 这种石头的质地很坚，普通的凿子凿不动。

   zhè zhǒng shí​tou de zhì​dì hěn jiān, pǔ​tōng de záo​zi záo bù dòng.

   This stone is very hard; an ordinary chisel can't make a dent in it.

   Source: Dong Chinese Dictionary