The fire of Kidney Yang is the original force supporting other organs' physiological activities.

肾阳相火是其他脏腑生理活动的原动力。

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They have now joined the 18, 000-strong African Union (AU) force supporting the UN-backed government.

BBC: Map locator

Higher crude oil futures prices Thursday were the other bullish outside market force supporting the precious metals.

FORBES: P.M. Kitco Metals Roundup: Gold Ends Higher amid Bullish "Outside Markets"

Father Jud has been a quiet yet steady force supporting the students as they assess community needs, address public officials, and organize volunteers.

WHITEHOUSE: Students in Camden Inspire Their Community and Share Lessons with HHS Staff | The White House