0 abbreviation for repetitive strain injury -- （尤指长期使用计算机或键盘等导致的手、腕、上臂、背部的）重复性劳损（repetitive strain injury的缩写）
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。
