回邮信封 Traditional 回郵信封 huí yóu xìn fēng 🔊 self-addressed stamped envelope (SASE) + Keep this word Meanings huí yóu xìn fēng 回郵信封 self-addressed stamped envelope (SASE) Its characters 回huíto go back; to returnHSK 1邮yóupost (office)信xìnletterHSK 3封fēngto conferHSK 3