trolley

名词 trolley:

1. a wheeled vehicle that runs on rails and is propelled by electricity
   同义词：streetcar, tram, tramcar, trolley car

1. The trolley bus picks up current from an overhead wire.
   无轨电车的电能是通过架空线供给的。
2. Oil the trolley, and then it will turn more freely.
   给手推车加点油，这样它就能自由运转了。
3. These suitcases are too heavy to carry; we need a trolley.
   这些衣箱太沉了，我们需要一辆小手推车。
4. Cars and trolleys filled the streets.
   汽车和电车塞满了整条街。