Sentence:  "Fondling," she saith, "since I have hemm'd thee here Within the <WSD>circuit</WSD> of this ivory pale, I'll be a park, and thou shalt be my deer: Feed where thou wilt, on mountain, or in dale; Graze on my lips; and if those hills be dry, Stray lower, where the pleasant fountains lie." 
Meaning of the word marked with <WSD> tags:  The space enclosed within a circle, or within limits.