focus/ 'fəukəs /

1.noun [u] [Photography] 
聚焦

2.noun [c] [fig] 
(subject) 重点

3.noun [c] [fig] 
(attention) 关注点

4.vt.[+camera] [ telescope] 
调节…的焦距

5.vt.[+light rays] 
使聚焦

6.vt.[+eyes] 
使注视

7.vi.
to focus (on) (with camera) 聚焦( 于 )

8.vi.[eyes+] 
注视(于)

9.vi.[fig] 
(concentrate on) 集中(于)

in focus/out of focus
焦点对准/没对准
to be the focus of attention
为关注的焦点
to focus (one's) attention on sb/sth
把精力集中于某人/某事