Paragraph SevenIf a self-driving car brings a package to your driveway, it's apparently too hard for some people to go out to the driveway to get it. So the Ford Motor Company is testing a robot called Digit. After packages are driven the last mile, Digit carries them the last 10 feet. It can even get around the things in its way.A robot that can carry o______.
【正确答案】：objects
