built-in hydraulic jacks

例句：

1. 1.Our new car has built-in hydraulic jacks, so it can easily lift heavy objects.
   我们的新车有内置液压千斤顶，所以可以轻松举起重物。
2. 2.The construction site uses built-in hydraulic jacks to lift the heavy equipment.
   施工现场使用内置液压千斤顶来抬起重型设备。
3. 3. The engineer used built-in hydraulic jacks to lift the roof of the building.
   工程师使用内置液压千斤顶来抬起建筑物的屋顶。