The development of complex life on Earth depended on the presence of bacteria that could be consumed by larger organisms.

地球上复杂生命的发展依赖于细菌的存在，而细菌可以被更大的有机体所吞噬。

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Technological development is to provide humans with a life of high quality instead of replacing human beings.

技术发展是为了给人类提供高质量的生活而不是替代人类。

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A completely different theory holds that yawning assists in the physical development of the lungs early in life, but has no remaining biological function in adults.

另一种完全不同的理论认为，打呵欠有助于生命早期肺部的生理发育，但对成年人没有任何剩余的生理功能。

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"I never really realized that that meant that every living thing really came as an evolutionary development of the first seeds of life."

VOA: special.2009.12.01

They're theories of everything, encompassing just about everything that matters, day-to-day life, child development, mental illness, religion, war, love.

它们试图对世间的一切做出解释，包括了日常生活，儿童发展，心理疾病，宗教，战争及爱情。

耶鲁公开课 - 心理学导论课程节选

Life has only recently got better for hard of hearing patients with the development of modern hearing aids and cochlear implants.

直到近年来,随着现代助听以及耳蜗植入设备的开发,听力障碍病人的生活才有了改善,不过，有了新技术。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

These seemingly inconsequential events could also impact on Milo's later life and development in the game, he said.

BBC: 'Virtual human' Milo comes out to play at TED in Oxford

Furthermore, the emphasis on a standardized PC running Steam Big Picture could breathe new life into PC development.

FORBES: Why Valve's 'Steam Box' PC-Console Will Be A Game Changer

Pretty soon, the hunt for extraterrestrial life, the development of self-driving cars, and the folding of enzymes into novel proteins were being done this way.

FORBES: Hacking the President's DNA: When Synthetic Biology Meets National Security