According to the Encyclopaedia Britannica, evidence of skiing dates back thousands of years. Hundreds of ski parts that are 1,000 to 3,500 years old have been found in Sweden, Norway, and Finland. Also, a 4,000-year-old rock carving depicting skis has been found near the Arctic Circle in Norway.
如果你工作的时候 at full stretch， 那意思就是你在全力以赴抓紧时间干活儿。
The harsh weather conditions caused several accidents early this week and the emergency services were at full stretch.
When the factory works at full stretch it can produce 100 cars a day.
短语 a long stretch 用来谈论很长一段时间做同一件事情。这个短语也常用来描述某人在监狱长期服刑。
John drives his Ferrari like a madman. His carelessness might cause an accident and earn him a long stretch in jail.