0 an organization run by teachers and the parents of children at a school that tries to help the school, especially by organizing activities that raise money for it -- (尤指通过组织募款活动来对学校进行帮助的)家长教师联谊会,家长教师会
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。