如果火车装有危险物或易燃物，谨记逃离时避开这些物品。

Be aware that if the train you are on is also carrying dangerous or combustible materials, you will need to avoid these as you make your escape.

许多研靠危险物炙的科学家，咱追求知识中付出了生命蹬代价。

Some scientists who have studied dangerous substances have paid the forfeit of their lives in cause of knowledge.