shuttles
A shuttle is a plane, bus, or train which makes frequent trips between two places.
There is a free 24-hour shuttle between the airport terminals.
在机场的各航空站之间有24小时的免费穿梭巴士。
shuttles , shuttling , shuttled
If someone or something shuttles or is shuttled from one place to another place, they frequently go from one place to the other.
He and colleagues have shuttled back and forth between the three capitals.
他和同事们一直来回往返于这三个首都之间。