A girl in water-wear has skipped a stone off an enclosed body of water.
A girl in has skipped a stone off an enclosed body of water.
A boy in water-wear has skipped a stone off an enclosed body of water.
A man is sleeping on the push cart.
A girl shows off her dance moves.
Cost heterogeneity has nothing to do with vulnerability to inefficient entry.
there are people in the lab
The two martial artists are grappling with each other.
There is a man with the instrument.