This all obviously changed when affordable automobiles and later air travel came into the picture.

当廉价汽车和后来的航空旅行出现时，这一切都明显改变了。

And then, of course, Kevin Smith came into the picture.

-然后，当然，凯文史密斯出现了。

This was where the paleo artist Bob Nicholls came into the picture.

这便是古生物艺术家Bob Nichols所做的工作了。

These have also made my life a lot harder 'cause I use to just apply them with my fingers and then these came into the picture.

这些也让我的生活变得更加艰难，因为我过去只是用手指涂抹它们，然后这些就出现了。