British researchers claim that a routine eye test carried out by your optician could detect Alzheimer's up to 20 years before any symptoms show.

英国研究人员声称，验光师做的常规眼部检查能提前20年，在任何症状出现前检测出老年痴呆症。

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If you've explored the area before, keep an eye out for familiar sights—you may be surprised how quickly identifying a distinctive rock or tree can restore your bearings.

如果你以前曾探索过这一区域，请密切留意熟悉的景物——你可能会惊讶于，认出一块独特的岩石或一棵奇特的树竟能如此迅速地让人重获方向。

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Before surgery, your eye doctor takes a detailed medical history and USES specialized equipment to carefully measure your cornea, noting the shape and any irregularities.

手术前眼科医生会看你的详细病例，然后用专门的仪器测量你的角膜，计算其形状和任何不规则处。

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The position that says, you should always have the fact of your mortality forever before your mind's eye-- I think that's misguided.

那种认为，你应该一直永远想着,你必有一死的事实的观点-,我认为那是有误导的。

耶鲁公开课 - 死亡课程节选

My prayer for you is that 10 years later, their memory is able to bring a smile to your lips before it brings a tear to your eye.

WHITEHOUSE: Vice President Biden Honors Flight 93 Memorial

My prayer for you is that, 10 years later, when you think of them -- 10 years later when you think of them that it brings a smile to your lips before it brings a tear to your eye.

WHITEHOUSE: Vice President Biden gives Remarks at the Pentagon

But before you get too lost in the baseline maze, keep your eye on the basic story: Perry would cut taxes for a lot of people, especially for those at the top of the income scale.

FORBES: TPC Scores Perry Plan -- Yikes!