A bagor sack used to carry mail or diplomatic dispatches. 袋子用于装信件或外交信函的邮袋或文件袋。
I myself put one letter in that famous bag just before the aeroplane went up, and that letter, which was addressed to my wife in London, reached her safely. 正好在飞机起飞之前，我自己也往那个著名的邮袋里投了一封寄给我在伦敦的妻子的信，信平安到达。
