A straight consists of three or four cards with consecutive values. The values of the three cards in Chinese and white are discontinuous and independent, and there is no direct numerical connection, so it is impossible to form a straight. Moreover, China Bai is a character plate in mahjong, which is different from the number plates such as horizontal bar, tube and ten thousand. In mahjong, plates are used to form sculptures or barbells, not straight plates.

In mahjong game, Zhongbaifa, as a plate, can be combined with other cards to form various Hu cards, which adds more changes and challenges to the game.