translation.en: And in fact, America was the first country that ever did mail-delivery queens and in fact, it's part of the postal code that you have to deliver queens by mail in order to make sure that we have enough bees in this country.
translation.zh: 实际上，美国是第一个 通过邮件运送蜂后的国家，而且， 必须要通过邮件邮寄蜂后是邮政法的一部分 这可以保证我们国家有足够的蜜蜂。