Professor Lam said, larynx is a malignant tumor, more common in more than 50 years old crowd.

林教授表示，喉癌是恶性肿瘤的一种，多见于50岁以上的人群。

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The poll of 2,000 Britons found those more than 50 years old laugh far less than their younger counterparts and complained far more.

这项针对2，000名英国人的调查显示，年龄超过52岁的人笑得远比年轻一些的人少，抱怨则多得多。

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For example, BHP reckons that 35% of Chile's copper production capacity is from mines that are more than 50 years old and 70% from those more than 20 years old.

如，力和力拓认为，智利的铜产能中有35%是来自那些有50多年历史的矿山，70%来自那些有20多年历史的矿山。

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Because of copyright expiration rules, many texts more than 50 years old could eventually be distributed for free.

CNN: Electronic books are poised to become a key medium

Beginning in 2007, the sales of a novel more than 50 years old, Atlas Shrugged, began to soar.

FORBES: Book Review: Ayn Rand's "Free Market Revolution" by Yaron Brook and Don Watkins

But such innovation is beyond the means of most British councils, some of which operate lights that are more than 50 years old.

ECONOMIST: The lights are going out all over Britain