The WannaCry attack exploited a flaw in old Windows operating systems.

“想哭”病毒利用了旧版Windows操作系统中的漏洞。

They made tremendous efforts to reform the old economic system.

他们作出巨大的努力来改变革旧的经济体制。

The expression comes from older telephone systems that use wires.

这个表述来自老式的电话电话系统，那时它们的都是用电线的。

Old cars with old exhaust systems drove along uneven roads.

装有旧排气系统的旧车在崎岖的道路上行驶。

Because they were rearranged from an older system the letters aren't alphabetical.

因为它们是从旧系统中重新排列的，那些字母并不是按字母表顺序排列的。

So why not take a trip on the oldest underground system today?

所以今天为什么不乘坐一下最古老的地铁系统呢？

The finance minister Alfonso Prat-Gay said the old system had restricted economic growth.

财政部长普拉特-盖伊(Alfonso Prat-Gay)表示，旧的体系限制了经济增长。

London's Tube, the world's oldest subway system, ran through dawn this morning. That's a first.

伦敦地铁是世界上最古老的地铁系统，今天，伦敦地铁开始通宵运行。这是第一趟通宵运行的列车。

It has the distinction of being the oldest and most complex underground system in the world.

它因是世界上最古老和最复杂的地铁而著名。

In place of the old system, the government has proposed shifting the costs of flooding onto homeowners.

新的保险系统下，政府提出将洪灾的费用加到房主的身上。

But we could very well be looking at one of the oldest graphic communication systems in the world.

但我们很可能看到的是世界上最古老的图形通信系统之一。

Critics say the law replaces the old payment system with new assistance that may violate international trade rules.

批评者称该法废除了旧的补贴体系，代之以可能违反国际贸易规则的新援助。

It is one of the world's oldest mass transit systems. The city's first subway line opened in 1904.

这是世界上最古老的公共交通系统之一。纽约市首条地铁线路于1904年开通。

And they were basically contract-writers in the old studio system, and they wrote a movie and it got made.

他们差不多是旧制片厂体制下的合同写作者，他们写了一部电影，然后就拍了成片。

It's an older system of heating houses and buildings.

这是一种较旧的房屋和建筑物供暖系统。

But I had the old operating system customized with special settings.

Vanessa：但是我用特殊设置定制了旧操作系统。

Lectures have replaced the old tutorial system.

【replace，replaceable】课堂授课取代了旧式的导师制。

After World War II, most people agreed that the old system had failed.

第二次世界大战后，大多数人都认为旧制度已经失败。

I wonder if the old intercom system still works.

不知道当年的" 对讲机系统" 还好用不。

I think on balance I prefer the old system.

【balance】总的说来，我更喜欢旧体制。