n. 目标( objective的名词复数 ); [光学]（望远镜、显微镜、照相机及其他光学仪器上的）物镜; [语法学]1)。 宾语 2)。 宾格; [军事]出击目标

n the goal intended to be attained (and which is believed to be attainable)

n the lens or system of lenses in a telescope or microscope that is nearest the object being viewed