0 abbreviation for self-addressed stamped envelope: an envelope with a stamp and your name and address on it that you send inside another envelope to an organization when you want a reply -- (贴足邮资写明姓名地址的)回邮信封(self-addressed stamped envelope的缩写)
Please enclose an SASE with your application. 请随申请书附上贴足邮资写明姓名地址的回邮信封。
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
再长的路,一步步也能走完,再短的路,不迈开双脚也无法到达。