saddle * up +
上馬鞍；給 (馬) 裝鞍具
She saddled up the horse and rode off.
saddle * with
They saddled me with preparing the visit.
saw at +
Tony was sawing at the piece of chicken with his knife.
saw * off +
He sawed off the legs of the chair.
saw * up +
把 … 鋸成小段
We sawed the plank up to make the shelves.
scale * back/down +
They had to scale back the project because of the costs.
The search operation has been scaled down.
scale * up +
They are scaling up the program because it has been so successful.