实际上灯泡寿命和亮度的改进全部来自灯泡制造商自己的选择。

Practically all the improvements in terms of life and brightness since then have come from the bulb-makers themselves.

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约有一半的成年美国人存在睡眠质量问题，这些人或许全部被处以了寿命罚款。

Half of mature Americans have difficulty sleeping, and all of them may pay a longevity penalty.

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事实上，这个轨道飞行器已经完成了它的全部任务，按照设计，它的寿命为6个月，到今年4月1日为止。

The orbiter had actually finished all its tasks within its designed life span of six months by April 1 this year.

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