沧海一鳞

Explanation: The sea in a fish scale. Analogy is very small. 　　Source: "Cold-view" the seventh back: "because of a dead people be asked to redress of grievances, the first son of offending of a wide, blue lamp itself once a decade, half-yellow paper, all black hat with the Ukrainian whip, like the sea of a scale, Wushan cloud, a sudden wind relaxation switch, without any involvement of a town. "