•Book by August 1, 2011 11:59, from your city of departure. + q8 Q+ c% T0 s# t0 Y. P/ ?" l* G•Valid for travel between July 27 and October 31, 2011 $ _8 n8 ? [; K具体内容自己看吧% U, l) b5 q% p1 q- P http://www.aircanada.com/en/offe ... t/asiadiscount.html