body bolster cover

例句：

1. 1. The doctor advised him to take a body bolster cover for his back pain.
   医生建议他为了背痛而使用身体支撑物。
2. 2. The baby was wrapped in a soft blanket as a body bolster cover.
   宝宝被裹在一条柔软的毯子里作为身体支撑物。
3. 3. The old lady used a body bolster cover to keep warm during the cold winter nights.
   老妇人用身体支撑物来保暖，在寒冷的冬夜。