During the trip on the train, the originally cheerful atmosphere was slowly replaced by a more serene atmosphere, this was natural because after people listened to what the president had to say to them, it can still be said that this was not something rn emergency.
But in reality, they also understand that what they have just heard is a sign or a signal from the central government that something big is likely to be faced by this country or even the whole world, so then the course steps must be prepared to deal with with with this.