If not, then it is even more important to keep your head. Breathe slowly from your abdomen and try yourself. Resolve to survive and wait calmly to be rescued.
如果沒有，更要絕對的冷靜，可用腹式呼吸法緩吸緩吐，同時試著敲擊出聲求援，並堅定求生意志，靜待救援。