Our preparation for the Age of Turbulence began nearly a year ago.

They say that after many years of relying on unstable governments in the Middle East for oil, the United States now looks likely to rely on China to tap energy from the sun.

The world advances amidst turbulence.

The diaphragm vibrates, thus setting the air around it in motion.

The reformists took power and staged a far-reaching "Hundred Days' Reform" movement to make a radical change to society, under the volatile and complex social environment.