Empty trucks drive to the loading dock at the back of the factory so that workers there can load them with freight.

空卡车驶向工厂后面的装卸区，这样工人可以在那里装货。

youdao

"I'll know when it's time." Back at the dock,Ryan and Cabral empty 135 kilos of lobsters.

VOA: standard.2010.07.20

Make sure to lock the bike carefully by pushing the front wheel into an empty dock.

BBC: Bike sharing around the world