die bolster

例句：

1. 1. The old sofa is tooworn out to be used as a diebolster anymore.
   这把旧沙发已经磨损得无法再用作支撑物了。
2. 2. She placed the cushion on thefloor as a die bolster forher dog.
   她把垫子放在地板上作为狗的支撑物。
3. 3.The weight of the heavybag was enough to make thechair feel like a die bolster.
   这个重袋子的重量让椅子感觉像是支撑物。