depth /depθ/ n. 1.［u］深度；某种深度的情感(可加不定冠词)：What is the depth of the lake? 这湖有多深? The book shows the author’s depth of learning. 这本书显示了作者学问的深度。2.深处(pl.): in the depths of the forest 在森林深处 Coal miners have to work in the depth of the earth.煤矿工人得在地下深处工作。3. 用于习语in depth深度；详细地，全面地，深入地：The snow is three feet in depth. 这雪3英尺深。Research students pursue a specific aspect of a subject in depth. 研究生对课题的某一特定方面进行深入研究。out of one’s depth超出了某人的能力 I was out of my depth in the advanced class, so I moved to the intermediate class.在高级班超出了我的水平，因此我还是转到了中级班。