There seemed to be voices talking behind the door.,"Later, I'll give each of you a portable camera. Turn on the recording function and for the next four hours, you will be moving around various areas of the factory with your cameras. You can only stop recording to use the restroom. After four hours, if you haven't left the factory and your recording hasn't been interrupted for more than five minutes, you pass.","Good!" everyone responded in unison. Whether the task was pleasant or not, they had to show their leader a positive work attitude.。