0 from one end or side of something to the other: --
How long the journey takes will depend on how long it takes to get through the traffic.
Her words kept running through my mind/head (= I kept hearing her words in my imagination).
I saw him drive through a red light (= he did not stop at the red traffic light).
I'll put you through (= connect you by phone) (to the sales department).
2 as a result of: --
The company lost the order through production delays.
3 by; using: --
4 having finished using or doing something: --
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.
We kunnen het stap voor stap voltooien, hoe lang de weg ook is en het kan niet worden voltooid, hoe kort de weg ook is, als je niet eens je voetafdruk markeert.