In fact, a class is defined solely by what it can do — the data that it USES to perform those tasks is an irrelevant implementation detail that should be hidden from the rest of the world.

事实上，类完全根据它所能做的事情来定义？它用来执行那些任务的数据是应该对外部世界隐藏的不相关的实现细节。

youdao

Money and class not only indicate what the world has already given you, but often suggest what the world is willing to offer you.

金钱和阶级不仅表明世界给了你什么，而且通常显示了世界愿意给你什么。

youdao

Much of what is left of its industry is in high-tech or research-based fields such as aerospace engines and pharmaceuticals, where its world-class firms are more than holding their own.

该国现有行业大多数集中在高科技或研究领域，诸如航空引擎以及制药业，这些世界级的公司没有满足只是在国内称霸，还将触角伸向了海外。

youdao

"What we have is a world class oil field sitting below a world class city, " said John Martini, manager of governmental affairs for Plains Exploration and Production Co.

NPR: Oil Expansion Plans In L.A. Rile Residents

What you claim Obama has accomplished and what is happening here in the real world (middle class America) are very different.

FORBES: Five Reasons to Re-elect President Obama

What it lacks is strong links with a world-class university, and a powerful network of people with a track record in both science and business, willing to pass on lessons to new companies.

BBC: Start-up Britain - Cambridge v Tech City