The black car, that carried Chu Yunsheng, stopped at the last traffic light before the hospital. Passing one more street at the front, they would arrive at the first people's hospital.
On the left, a new silver Volkswagen Sagitar was also stopped at the red light. Behind the window, a boy of seven or eight years old was looking curiously through the glass at the black car on the right, and shouted in surprise,
"Dad, Dad, look, that car is emitting a lot of black gas. Lots of it!"