Bing tried to stand up but was impeded by two big, tough men. Their appearance gave Mei an immediate shock. They had identical outfi ts, identical height, identical body shapes, identical haircuts and identical faces wearing the same piggish expressions. Only when they raised their feet to kick Bing time and again, their shoes revealed diff erent colors, one white and one black. Mei couldn’t tell which was which, who was who. But it was certain they were twin brothers.