There was no major tumbling falls. This year, with the recovery growth in place, our economic and trade cooperation has maintained a strong momentum of growth.

今年以来，中欧经贸合作保持强劲发展势头，实现了恢复性增长。

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This paper analyzes and discusses specific application of the conservation law of angular momentum in competitive sports, such as aerial tumbling, trunk rotation and somersault.

分析讨论了角动量守恒定律在空翻、转体以及旋空翻等竞技动作中的具体应用。

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When the decline in the equity premium halts so too does the momentum, perhaps sending share prices tumbling.

ECONOMIST: Letters

Buffeted by that momentum, the Dow touched a three-year high before tumbling through the summer.

WSJ: Dow Closes at Highest Level in 4 Years