We were surprised by his complete immersion in the culture of the island.他对于那座岛的文化的潜心钻研让我们吃惊。Treat sprained ankles by immersion in cold water.用浸入冷水法医治扭伤的足踝。Such long-term assignments allowed them total immersion in their subjects.这样的长期任务使他们得以潜心研究自己的课题。