Experts estimate that surgical complications result in at least one million deaths a year. The W. H. O. says studies suggest that about half of these problems may be preventable.

专家估计每年至少有一百万人死于外科手术并发症，世界卫生组织说，调查研究认为这些问题大约有一半是可以避免的。

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Covering more than half a million square miles of ocean located between Bermuda, Florida and Puerto Rica, the term "Bermuda Triangle" was first coined by writer Vincent H. Gaddis in 1964.

“百慕大三角”一词最先于1964年由作家文森特•嘉迪斯提出，是指百慕大群岛、佛罗里达州和波多黎各之间超过五十万平方千米的海域。

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In addition,almost half a million people who were infected with tuberculosis and with H.I.V.also died.

VOA: special.2009.03.25

So, if we talk about dissociating h 2, we're going from the h 2 molecule, and breaking this bond right in half, so we now have two individual hydrogen atoms here.

那么，如果我们讨论的是离解氢分子，我们将从氢分子开始，使这个键断裂，一分为二，那么就得到了两个分开的氢原子。

麻省理工公开课 - 化学原理课程节选

In December a company called Blue H Technologies, based in Oosterhout in the Netherlands, placed a half-size prototype turbine about 20km off the coast of southern Italy in water 108 metres deep.

ECONOMIST: Monitor