The cell, over the billions of years of her life, has covered the earth many times with her substance, found ways to control herself and her environment, and insure her survival. ↗
The United States is our most important ally. They helped us many times. Without the United States, the unification or German democratisation after the Nazi period would have been much more complicated, or almost impossible. ↗
I have walked around the same streets so many times, and then seen a place that had been hidden to me. I now know the sites in a way that makes me think I could have made better use of the connections between place and snowball. ↗
We finally found out the technique of separating and getting information about where every train would be at any moment. Of course, I went over budget many times, because - as you go along - some things improved, and you get better ideas. ↗