•Book by August 1, 2011 11:59, from your city of departure. l4 Y' p, Q! y! o, a2 Q•Valid for travel between July 27 and October 31, 2011 ; x0 b. X! L4 A/ U, U+ ?( Y具体内容自己看吧 ; y4 P5 }6 U1 v6 t& jhttp://www.aircanada.com/en/offe ... t/asiadiscount.html