What do you mean, one thunder breaks nine roads?

It means that one thunder can break nine typhoons.

Thunder, first seen in Oracle Bone Inscriptions, originally meant the powerful sound released by discharge when two clouds with opposite charges approached. Shuowen: "_, yin and yang are thin and moving, and thunderstorm creatures are also." Later, it was extended to thunder and was quickly compared to thunder; It can also express thunderous sounds.

Typhoon is a kind of tropical cyclone. Tropical cyclone is a low-pressure vortex that occurs on the surface of tropical or subtropical oceans, and it is a powerful and profound "tropical weather system". In China, tropical cyclones in the South China Sea and the Northwest Pacific are classified into six grades according to the maximum average wind speed near the bottom center, and the wind near the center reaches 12 or above, which is collectively called typhoon.