例句與造句

1. Recently, the U . S . Naval forces have tested a swarm of autonomous boats that can steer and take offensive actions by themselves.
2. The teams from the DARPA car program and the autonomous boat program were eventually rolled into the Personal Robotics Program, which by the end of 2008, became the focus of Willow Garage.
3. It's difficult to find autonomous boat in a sentence. 用autonomous boat造句挺難的