请问一下关于航空公司的来信

RENSHENGXIAOSA

AIR CANADA
- q" i* c! E  F: G: _1 _
Effective 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.

We 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.
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。

sonicho

4月10号的飞机在起飞前45分钟停止CHECK IN和行李托运，多伦多城市机场例外是20分钟前停止，后面没啥，告诉你可以用上网或移动设备CHECK IN. 最好能知道登机口在哪儿好让你方便登机来自: Android客户端

RENSHENGXIAOSA

谢谢，我妈是9月份的机票，跟这没什么关系，就是提前去机场就可以了。

littlefish2011

是4月10日以后的航班，都有用的

RENSHENGXIAOSA

哦，就是让提前到机场办理手续了。谢谢你