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The invention of the cotton gin was the result of necessity and observation.
解释:情绪变化会影响身体生理反应,如贪心时口水增多,悲哀时流泪,体现了情绪与健康的关联。
Never underestimate the power of a team that believes in a shared vision.
The key to successful investing is to have a long-term horizon.
Grief is just love with no place to go.