Every year thousands of young people in England finish school and then take a year off before they start work or go to university.
在英国,每年都有成千上万的年轻人完成学业,然后在开始工作或上大学之前休息一年。
When I am facing a lot of pressure at work, my back and neck will start to hurt.
VOA: special.2010.01.24
But when you start doing scientific research or financial work, imprecision and rounding errors start to add up.
但如果你碰到涉及科学研究,或财政方面的项目时,不精确度,和错误就会累加。
This piston is being brought out, so we expect 0 the work to be negative, negative. And we start o V2 ut with zero volume. We end up with a volume p2 of V2, and the external pressure is constant to p2.
所以我们可以想象功是负的,开始的时候体积是,最终的容积是,外界的压力恒为。
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