Rough as a saw edge, and hard as whinstone!

像锯齿一样地粗，像岩石一样地硬！

Tell her what Heathcliff is: an unreclaimed creature, without refinement, without cultivation: an arid wilderness of furze and whinstone.

告诉她希刺克厉夫是什么样的人：一个没驯服的人，不懂文雅，没有教养，一片长着金雀花和岩石的荒野。