挥手意味着说再见。

Waving hands means saying good bye.

youdao

跟插头和电线说再见吧——在科学家们给我们演示完移动电话和电视是怎样通过简单的物理原理来无线充电后，这意味着无线电力的时代离我们的生活更近了。

Say goodbye to plugs and cables - the era of wire-free power has moved a step closer, after scientists showed how mobile phones and televisions could be powered using simple physics.

youdao

那么这意味着我们可以与对象所有权的概念说再见了吗？

So does that mean we can say goodbye to the concept of object ownership?

youdao