verb · to be deeply absorbed or concentrated in study, thought, or a task

他沉潜于学术研究，终于取得了突破性进展。

verb · to keep a low profile or stay out of the public eye for a period of time

他在失意时选择沉潜，默默积累实力。

verb · quiet, calm, and self-possessed in character or demeanor

他性格沉潜，从不张扬自己的成就。

verb · to lurk or stay hidden under water

鳄鱼沉潜于水底，等待着猎物的到来。