An increasingly attractive theory holds that decreases in atmospheric carbon dioxide start the cooling trend that leads to glaciation.

一个越来越有吸引力的理论认为，大气中二氧化碳的减少引发降温趋势，这趋势导致冰川作用。

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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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Current theory holds that planets are made from disks of gas and dust left over after star birth.

现有理论指出：行星是恒星诞生之后的残留物——碟状尘埃和气体的产物。

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And it's precisely for this reason that at least the soul, belief in the soul, combined with the soul theory of personal identity holds out the possibility of surviving my death.

就因为这个原因,至少灵魂，相信灵魂，在加上灵魂理论的人格同一性,建立起我不死的可能性。

耶鲁公开课 - 死亡课程节选

The amyloid theory holds that these mutations cause the genes to go into hyperdrive and produce too much amyloid.

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Einstein's theory holds that matter and energy distort space, and massive bodies such as planets and stars travel in this warped space.

ECONOMIST: Cosmology

Situational leadership theory holds that leaders are most effective if they adopt different leadership styles depending on the task and the people they are leading.

FORBES: Can 'Feminine' Women Make It To The Top?