focuses

基本解释

focus用作名詞時原始意義是“火爐”,引申爲“焦點”,轉化爲動詞則爲“(使)聚焦”,“(使)集中”。即“調整…的焦點或焦距以便看清”,引申則表示“使(注意力等)集中於某物”。
focus用作及物動詞時,可以接望遠鏡、焦點等作賓語,也可以接陽光等作賓語,還可以接目光等作賓語。focus用於比喻作“致力於”解時,則可以接mind, attention等作賓語。
focus也用作不及物動詞,這時常和介詞on連用,表示“聚焦於…”“致力於…”等。
focus on sth表示“集中於某事”；
focus作“中心，焦點”的解釋時，用詞範圍很廣，常被濫用，需注意。

If you focus on a particular topic or if your attention is focused on it, you concentrate on it and think about it, discuss it, or deal with it, rather than dealing with other topics.
If you focus your eyes or if your eyes focus, your eyes adjust so that you can clearly see the thing that you want to look at. If you focus a camera, telescope, or other instrument, you adjust it so that you can see clearly through it.
If you focus rays of light on a particular point, you pass them through a lens or reflect them from a mirror so that they meet at that point.
Thefocus of something is the main topic or main thing that it is concerned with.
Your focus on something is the special attention that you pay it.
If you say that something has a focus, you mean that you can see a purpose in it.
You use focus to refer to the fact of adjusting your eyes or a camera, telescope, or other instrument, and to the degree to which you can see clearly.
If an image or a camera, telescope, or other instrument is in focus, the edges of what you see are clear and sharp.
If something is in focus, it is being discussed or its purpose and nature are clear.
If an image or a camera, telescope, or other instrument is out of focus, the edges of what you see are unclear.