基本解釋n. 重點(focus的複數(shù));焦點 v. 集中(focus的三單形式);使聚焦;調(diào)節(jié)焦距詞源解說 17世紀40年代進入英語,直接源自古典拉丁語的focus,意爲爐牀,壁爐。同根派生 focuses相關詞用法辨析v. (動詞)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(diào)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。 focuses使用方法focuses詳細辨析英漢例句用作動詞 (v.)用作不及物動詞: S+~(+A)A defect of vision prevented him from focusing accurately.眡力缺陷使他無法準確聚焦。用作及物動詞: S+~+ n./pron.He focuses the lens of a microscope.他調(diào)整顯微鏡的鏡片以定焦點。用作名詞 (n.)The camera has two focuses.這部相機有兩個焦距。focuses更多例句詞組短語用作動詞 (v.)~+名詞focus one 's thoughts 集中思想focus the lens of a microscope 調(diào)節(jié)顯微鏡的鏡片~+副詞focus accurately 準確地調(diào)節(jié)focus properly 調(diào)整~+介詞focus on 集中於focus on the interaction between 著重說明…之間的相互作用focus on a problem 集中在某個問題上focuses更多詞組英英字典柯林斯英英字典 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. focuses劍橋字典focuses柯林斯字典專業(yè)釋義地球科學震源毉葯科學(病)灶;疫源地物理學(鏡頭的)焦點,焦距聚焦,對焦點,對光;成像清晰點