小弟最近在国外网站internationaljock 买了3件内裤
收到信说9/6号已经出货，说有可能8-12工作天，可是可能会更久
到今天9/20都还没收到，不知道要多久才会来QQ
以下是他的信件内容
Greetings from International Jock.
Your order number 830859 was shipped today via Air Mail from our distribution
center in Los Angeles, California.
Air Mail packages should arrive in an average of 8-12 business days, but can
take three or more weeks to arrive. Please also check with your local post or
customs office as they may hold your shipment for you.
Thanks for shopping at International Jock, and we hope to see you again soon.
那个时候的运费是9点多美金，每一件再额外加0.95美金
这样大概是什么样的包裹，大概多久会到阿?
有没有大大有相关经验呢?