The smell of freshly baked cookies brings back memories of my childhood.

I am backing up my computer files.

He always backs up his important files.

He goes back to his hometown every summer.

She went back to her hometown after many years.

She has gone back to her hometown.

I am going back to my hometown next week.

She used a ribbon to tie back her hair.

She tied back her hair before going for a run.

When the original plan failed, we had to fall back on our backup strategy.