lift-and-carry mechanism

例句：

1. 1. The elevator has a lift-and-carry mechanism that makes it easy to move people up and down the stairs.
   电梯有一个升降机机制，使得上下楼梯变得容易。
2. 2. The new design of the car has a lift-and-carry mechanism that can easily carry heavy loads.
   这款汽车的新设计有一个升降机机制，可以轻松地搬运重物。
3. 3. The robot's lifting mechanism is so advanced that it can lift objects with ease without any human intervention.
   机器人的升降机机制非常先进，可以毫不费力地举起物体，而不需要任何人工干预。