| [/ˈfəukəs; ˋfokəs/] n (pl ~es or foci [/ˈfəusaɪ;ˋfosaɪ/]) =>Usage at data 用法见data. 用法:
1 [C] point at which rays (of light, sound, etc) meet or from which they appear to come （光、 声等的）中心点, 源. 用法:
2 [C] point or distance at which (the outline of) an object is most clearly seen by the eye or through a lens 焦点; 焦距. 用法:
3 [C] adjustment or device on a lens to produce a clear image 聚焦; 调焦; 聚焦或调焦的装置:
The focus on my camera isn't working properly. 我的照相机上的调焦装置有毛病. 用法:
4 [C usu sing 通常作单数] centre of activity, interest, etc 活动的中心; 使人感兴趣的所在:
Her beauty makes her the focus of attention. 她长得漂亮, 很惹人注目. *
In tonight's programme our focus is on Germany. 在今天晚上的节目中我们重点介绍德国. 用法:
5 (idm 习语) be in `focus; bring sth/come into focus (cause sth to) be or become clearly seen or sharply defined （使某事物）清晰、 明确或在焦点上:
Bring the object into focus if you want a sharp photograph. 要照出清晰的照片, 就要把焦点对准物体. be/go out of `focus not be or no longer be clearly seen, etc 模糊、 不清楚或不在焦点上:
The children's faces were badly out of focus (ie were very blurred) in the photograph. 照片上孩子们的面部非常模糊. focus 2
v (-s- or -ss-) 用法:
1 (a) [I] become able to see clearly 能够看清楚:
His eyes focused slowly in the dark room. 他在那间黑屋子里眼睛慢慢地看清了东西.
(b)[Tn, Tn.pr] ~ sth (on sth) cause sth to be concentrated(at a point) 使某事物集中（於一点）:
If you focus the sun's rays through a magnifying glass on a dry leaf, it will start to burn. 用放大镜把阳光聚到乾叶子上, 叶子就能燃烧.
(C) [Tn, Tn.pr] ~ sth (on sth) adjust the focus(2) of (a lens or the eye) 调整（透镜或眼睛）的焦点或焦距:
Focus your camera (on those trees). 把照相机的焦距调准（把焦点集中在树上）. 用法:
2
(a) [I, Ipr] ~ (on sth) concentrate (on sth) 集中（於某事物）:
I'm so tired I can't focus (on anything) today. 今天我太累了, 精神集中不起来.
(b) [Tn, Tn.pr] ~ sth (on sth) concentrate (one's attention, etc) on (sth) 将（注意力等）集中於（某事物）:
Please focus your minds on the following problem. 请集中考虑以下问题. |