Base and Basis

base与basis 这两个词在作名词时可表示"基础；基地"，但其意义是不同的。base用来指某物体的具体"基础"或底部的"支柱"。Our company's base is in New York, but we have extended many branches all around the world，but we have extended many branches all around the world.

而basis则用来表示抽象意义上的"基础"，常用于比喻句。We are willing to develop economic relations with all countries on the basis of mutual benefits.