The typical family structure of Freud's patients involved two parents and two children...
The chemical structure of this particular molecule is very unusual.
The feet are highly specialised structures made up of 26 small delicate bones.
脚的结构非常特殊，由 26 块细小的骨头组成。
About half of those funds has gone to repair public roads, structures and bridges...
The house was a handsome four-story brick structure.
By structuring the course this way, we're forced to produce something the companies think is valuable.