expand/ɪkˈspænd/
vt., vi.1. 扩大The business has expanded from having one office to having twelve.这个公司已从一个分公司发展到拥有12个分公司了。
Metals expand with heat.金属遇热膨胀。
The company has expanded its operations in Stanford by opening a new branch office there.这家公司在斯坦福新开辟了一家分理处，扩大了在那儿的经营。
The eagle expanded his wings.雄鹰展翅。
The shipbuilding industry is rapidly expanding.造船工业正在迅速发展。
This golf course expands to the riverside.这个高尔夫球场的地界扩展到河边。
2. （常与on连用）详述