+0
1moor
1: an expanse of open rolling infertile land
[M-W's Col. Dic.]

What does rolling mean?
+0
It looks like this: http://tinyurl.com/339jqj
Comments  
Not absolutely plain, having smooth hills and asperities...
Students: We have free audio pronunciation exercises.
 Feebs11's reply was promoted to an answer.
Thanks, Anton and Feebs.