self-pos·ses·sion
noun/ˌself pəˈzeʃn/
/ˌself pəˈzeʃn/
[uncountable]- the ability to remain calm and confident in a difficult situation
沉着的；镇定的；泰然自若的 - He soon recovered his usual self-possession.
他很快恢复了平时沉着冷静的样子。
- He soon recovered his usual self-possession.