jumping-off place /ˌʤʌmpɪŋˈɔf-/
出發點,山窮水盡的地步,遠僻處
jumping-off place
n : a place from which an enterprise or expedition is launched;
"one day when I was at a suitable jumping-off place I
decided to see if I could find him"; "my point of
departure was San Francisco" [syn: point of departure]