A truck is a vehicle with a large area in the back for carrying things with low sides to make it easy to load and unload. A truck is the same as a pickup.
双语例句
例： We can only seat two in the truck.
我们的敞篷货车里只能坐两个人。
例： Throw the dogs in the back of the truck.
把狗都扔到敞篷车的后面去。