foci

名词 focus:

1. the concentration of attention or energy on something
   同义词：focus, focusing, focussing, focal point, direction, centering
2. maximum clarity or distinctness of an image rendered by an optical system
   同义词：focus
3. maximum clarity or distinctness of an idea
   同义词：focus
4. a central point or locus of an infection in an organism
   同义词：focus, focal point, nidus
5. special emphasis attached to something
   同义词：stress, focus
6. a point of convergence of light (or other radiation) or a point from which it diverges
   同义词：focus, focal point
7. a fixed reference point on the concave side of a conic section
   同义词：focus

fo.ci

n.（名词）
A plural of focus
focus的复数