Would you like to live in a city where buildings turn the lights off for you, and self-driving cars will find the nearest parking space themselves?
你愿意住在这样一个城市里吗?那里的建筑物会为你关灯,而自动驾驶的汽车会自动找到最近的停车位。
3
The more students who enroll in a course but don't come to campus, the more the school saves on keeping the lights on in the classrooms, paying doorkeepers, and maintaining parking lots.