versions是什么意思？

At their best, they are works of art and there is a tactile（触觉的）pleasure in books necessarily lost in e-book versions.

Authors still published in printed versions will be considered important ones

Many professors require that their students use only the latest versions in the classroom, essentially rendering older texts unusable.

Textbook versions are constantly updated, motivating publishers by minimizing production costs (the big ones like McGraw-Hill are already on board)

they are no more than print versions put on a screen

Companies are employing in-house versions of Facebook and creating their own "app stores" to deliver software to employees.

has more than 100 million existing homes, and it would be incredibly wasteful to tear them all down and replace them with greener versions

As smaller cities copy the model of these "24-hour cities", more affordable versions of these places will be created.

Goel and his team developed several versions of Jill Watson before releasing her to the online forums.

And to get at the contents of a single iPhone, the government says it needs a court order and Apple's help to write new code; in earlier versions of the iPhone, ones that were created before Apple found religion on 热衷于 privacy, the Fbi might have been abl

Joseph says his products are priced 10-20% above organic versions, but depending on the product chosen, compared to non-organic conventional yogurt, consumers could pay a premium of 30-50% or more for grass-fed.