focus /ˈfəukəs/ I. n. ［c］1.焦点，焦距：The focus of a near-sighted eye is nearer the face than the focus of normal eyes. 近视眼的焦点比正常眼焦点离面部近。adjust the focus 调焦距 2.中心： the focus of an earthquake (storm, disease, etc.)地震(暴风雨，疾病等)中心 She always wants to be the focus of attention. 她总是想成为注意的中心。 ‖II.vt.& vi. 使聚焦，调整焦距：focus the lens of a microscope 调整好显微镜镜头的焦距 focus on 1.把光线集中在…上，对准：The scientist focused the telescope on the moon. 科学家把望远镜对准月球。2.把…集中在…上：focus one’s thoughts/mind on/upon… 集中思想于某事All eyes were focused on/upon him. 所有的目光都集中到他的身上。［考句］ All her energies are focused upon her children and she seems to have little time for anything else. 她的精力全部倾注于她的孩子身上，对其他一切她似乎都没有时间顾及。