If well maintained, modern jets have a safe working life of some 30 years, but older planes will inevitably be less fuel-efficient than the latest models.

维护得好的话，现代飞机可以安全服役大约30年，但是老飞机不可避免地将会比最新款的飞机油耗更没效率。

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It is a safe bet that the master of post-modern cinematic irony intended nothing so simplistic as this.

要说这位后现代电影讽刺大师所要打算的事情绝非这般简单，则稳操胜券。

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Scala is a modern multi-paradigm programming language designed to express common programming patterns in a concise, elegant, and type-safe way.

Scala是一门现代的多范式编程语言，志在以简练、优雅及类型安全的方式来表达常用编程模式。

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And the looming block obsolescence of its existing nuclear energy infrastructure -- which currently supplies 8% of total U.S. daily consumption -- means that, unless steps are promptly taken to prepare, certify and bring on-line safe, modern replacement reactors, America will become still more vulnerable to threats, or actual interruptions of, its overseas oil supplies.

CENTERFORSECURITYPOLICY: Center For Security Policy

This would have cleared out major debris, Scarborough said, but city dwellers likely had to boil their water or use it to make alcohol in order to make it safe to drink, as sanitation was not up to modern standards.

MSN: Sustainable tech saw the ancient Maya through drought

All told, it's not-too-modern design could be a good thing: the 610's design might be safe, but it will also call less attention to itself than the 91z, whose anorexic panel borders on avant-garde.

ENGADGET: HP TouchSmart 610 review