focus
focus['fəukəs]n.1.■【物理学】焦点2.■【光学】(镜头的)焦点，焦距3.■【光学】聚焦，对焦点，对光；成像清晰点4.■(活动、注意力、兴趣等的)中心，重点，集中点5.■【医学】(病)灶；疫源地6.■【地质学】震源7.■【数学】8.■(椭圆的)焦点9.■(抛物线或双曲线的)螺线极点vt.1.■使聚焦，使集中于焦点：If you focus the sun's rays on dry wood with a burning-glass, it will start burning.如果你用取火镜使太阳光线聚焦在干木头上，木头就会燃烧起来。2.■调节(眼睛、透镜等的)焦距；定…的焦点；使(眼睛)注视：to focus the lens of a camera使照相机的镜头聚焦3.■集中；使集中于一点：to focus one's attention on a question注意力集中在某个问题上4.■使(公司)集中经营少数几项或一项生意vi.1.■聚焦；集中于焦点，注视：A nearsighted person cannot focus accurately on distant objects.一个近视眼者不能准确地调节眼睛看远处的物体。All eyes were focused on him.所有的目光都集中在他身上。2.■(照相机)对准焦点(于)；调焦距3.■集中：The beams of light moved across the sky and focused on the aircraft.光束穿过天空，射向飞机。bring into focus使集中在焦点上；调节(望远镜、照相机等的)焦距使注意力集中于，使清楚地注意到；使明确，使突出come into focus(某物)轮廓明显，清晰(问题)显著，突出；明白易懂in focus焦点对准的；清晰的清楚的，明白的out of focus焦点未对准的；模糊不清的变形n.focusesfoci变形vt.focused或focussedfocusing或focussing
focusfocus[ˈfəukəs]n.(pl. focuses, foci [ˈfəusai])1.■【物】焦点2.■焦距; 对焦点, 聚焦, 配光3.■(问题, 活动、兴趣等的)中心4.■【医】病灶5.■(地震的)震源6.■焦点范围7.■螺旋极点8.■美国中西部考古学系统的分类单位9.■疫源地focus electrode【无】聚焦电极the focus of world's attention世界注意的中心词性变化focus[ˈfəukəs]vt.1.■使聚焦, 集中; 使注视2.■调节镜头[焦距等]vi.1.■聚焦, 注视2.■调焦距
继承用法focus centern.1.■焦心点focus-classn.1.■焦点类focus-outn.1.■散焦focusableadj.focusern.1.■聚焦放大镜; 聚焦装置
