What goes down the hill, up the hill but stands still?!

Question: What goes down the hill, up the hill but stands still!?
Answers:

Road, lanes or pathways!!!!.Www@Enter-QA@Com

its roads !.!.!.!.!.!.!.!.!.!.!.!.!.!.it goes up d hill , down d hill but stands still!.!.!.!.!.!.!.!.Www@Enter-QA@Com

Coefficient drag , next question :))Www@Enter-QA@Com

molliewright123's fat ***, apparently!.Www@Enter-QA@Com

the road
but it doesn't really stand still, it's just laying thereWww@Enter-QA@Com

mmmmmmmmmmmmmm lift think so its gose up and down and it will stand stillWww@Enter-QA@Com

The grass!.Www@Enter-QA@Com

the path/roadways!?!?!?Www@Enter-QA@Com

roads Www@Enter-QA@Com

My fat ***Www@Enter-QA@Com

grass!?Www@Enter-QA@Com

a brick!?Www@Enter-QA@Com

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