de.fo.cus
v.tr.（及物动词）de.fo.cused 或 de.fo.cussed de.fo.cus.ing 或 de.fo.cus.sing de.fo.cus.es 或 de.fo.cus.ses To cause (a beam or a lens) to deviate from accurate focus.（使）散焦：使（一束光或一个透镜）从准确的焦点上偏散开来n.（名词）The act or result of causing a lens to deviate from accurate focus.散焦，去焦：使透镜偏离准确的焦点的行为或结果
