0 a curved piece of cartilage inside a joint (= place where two bones are connected) of the body such as the knee -- 半月板(膝盖等关节处的软骨组织圆盘)
1 on a liquid, a surface that curves either out or in as a result of surface tension -- (表面张力形成的)弯液面
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。