And most of these apps didn't connect to the Internet.

这些软件是单机版。

Not all games are single player focused, and not all helicopters have to fly alone.

并非所有游戏都是单机，直升机也并非尽是单飞。

Some two years after the petrol Monorack, they start with electrical Monoracks.

在推出汽油单机架约两年后，他们开始推出电动单机架。

All over the world we have more or less about 800 Monoracks.

们在世界各地约有 800 个单机架。

Here are the ten worst plane crashes in aviation history: Turkish Airlines Flight 981 (1974) This was the deadliest single-aircraft  crash in aviation history at the time.

以下是航空史上十最严重空难： 土耳其航空公司 981 号航班（1974 年） 这是当时航空史上最致命单机坠毁事故。