immersion
/ɪˈmɜːʃən/noun
mass noun
1- the action of immersing someone or something in a liquid沉浸, 浸泡：
his back was still raw from immersion in the icy Atlantic sea.
他的背部仍因浸泡在冰冷的大西洋中而感到刺痛。
1.1
- deep mental involvement投入, 沉浸, 陷入：
his total immersion in Marxism.
他对马克思主义的全心投入。
1.2
- chiefly N. Amer. a method of teaching a foreign language by the exclusive use of that language, usually at a special school〈主北美〉（一般运用于特殊学校的）全外语教学法, 浸入式外语教学法。
1.3
- baptism by immersing a person bodily (but not necessarily completely) in water浸礼。
1.4
- Astronomy the disappearance of a celestial body in the shadow of or behind another【天文】掩始。
词源
late 15th cent.: from late Latin immersio （n-）， from immergere 'dip into' （see IMMERSE）.