translation.en: And it's a symbolic number for us, because in the 1970s, doctors and physiologists did their math, and predicted that the human body would not be able to go below 100 meters.
translation.zh: 对潜水员来说 100米也是个颇有象征意义的数字 因为在20世纪70年代 医生们和生理学家曾做过科学计算 他们断言100米是人类的极限 人的身体将不能越过100米的深度