/ˈfəʊkəs ||; ˈfokəs/verb
[I,T] (focusing;focusedorfocussing;focussed)focus (sth) (on sth)
1 to give all your attention to sth 把注意力集中于 [I]
to focus on a problem把注意力集中在一个问题上
2 (used about your eyes or a camera) to change or be changed so that things can be seen clearly (指眼睛或照相机)调节焦距(以看得清楚):
Gradually his eyes focused.他的眼睛渐渐看清楚了。I focussed (the camera) on the person in the middle of the group.我把(照相机)焦点对准站在人群中央的那个人。
1 [usu.sing] the centre of interest or attention; special attention that is given to sb/sth 兴趣或注意力的中心;对…特别注意:
The school used to be the focus of village life.以前这学校是农村生活的中心。
2 (also focal point) (technical术语) a point at which rays or waves of light, sound, etc meet after REFLECTION or REFRACTION; the point from which rays or waves of light, sound, etc. seem to come (光、声等的)焦点,中心点
in focus/out of focus (used about a photograph or sth in a photograph) clear/not clear (指照片或照片上的东西)清楚或不清楚:
This picture is so badly out of focus that I can't recognize anyone.这张照片照得极不清楚,上面的人我一个也认不出来。