1. Wednesday's tumble came after a top legislator warned of bubbles in the stock market, prompting worries that the regulators might step in to cool down the market.
2. Chinese shares took another tumble on Friday as investors panicked at the government measures to rein in excess liquidity and cool down the stock markets.
3. tumble down
3. The mountains are so steep that the glaciers on their east face tumble down below the tree line before finally melting.
4. The currency continued to tumble on Friday following passage of the law and is now down by 12 percent for the year.
5. Three dice featuring animals from the Chinese lunar calendar tumble down a wooden board like a rudimentary fruit machine.