7 V; d7 b' N3 l# s9 m9 V+ l& A3 \" rEffective April 10, 2013, check-in and baggage acceptance for flights within Canada will close 45 minutes prior to departure – with the exception of flights leaving from Toronto’s city airport (YTZ), where check-in and bag drop-off will remain available until 20 minutes before departure.$ n1 M; @& }( o5 q
' [6 @, H# |7 n ZWe invite you to check in online or with your mobile device at any time within 24 hours of flight departure, and to familiarize yourself with our check-in and boarding gate deadlines to allow for a smooth travel experience. ! w* J; @& |" t. y" P$ X$ X这封信是什么意思,我英语不好,所以有英语好的大侠帮看一下。