0 one of two arteries (= thick tubes carrying blood from the heart) that pass up through your neck and take blood to your brain -- 頸動脈(通過頸部的兩條動脈之一,將血液由心臟送到大腦)
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。